What is often cited as the most significant impact of the Peace of Westphalia on the development of modern international relations? A) End of slavery B) Emergence of nation-state sovereignty C) Invention of the printing press D) Colonial expansion

The correct answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia, signed in 1648, is widely considered a pivotal moment in the development of modern international relations. The treaty effectively ended the Thirty Years' War and fundamentally transformed the political landscape of Europe. Its most significant impact was establishing the principle of national sovereignty, which became a cornerstone of modern international law and diplomacy.

Key implications of the Peace of Westphalia include:

1. Sovereign equality: Each state was recognized as having supreme authority within its own territory
2. Non-interference: Principle that external powers should not intervene in another state's internal affairs
3. Territorial integrity: Borders of states were more clearly defined and respected
4. Secularization of international relations: Reduced the role of religious conflicts in determining state interactions

The treaty marked a shift from medieval feudal systems to a more modern understanding of statehood, where rulers had absolute power within their own domains. This concept of sovereignty became a fundamental organizing principle of international relations and remains crucial in understanding global political dynamics today.

The other options are incorrect: A) End of slavery - Not directly related to the Peace of Westphalia C) Invention of the printing press - Predated the treaty D) Colonial expansion - While happening concurrently, not a direct result of the treaty

The correct answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is widely considered a pivotal moment in the history of international relations, with its most significant impact being the establishment of the concept of nation-state sovereignty. Here's why this is so important:

1. Historical Context: - The Peace of Westphalia ended the Thirty Years' War (1618-1648) and the Eighty Years' War - It consisted of two treaties: the Treaty of Münster and the Treaty of Osnabrück

2. Key Principles Established: - Sovereign equality of states - Non-intervention in other states' domestic affairs - Territorial integrity - State self-determination

3. Impact on Modern International Relations: - Created the foundation for the modern state system - Established the basic principle that each state has exclusive sovereignty over its territory - Reduced the political authority of the Catholic Church - Introduced secular authority as the basis of state power

This treaty system is so fundamental to modern international relations that the term "Westphalian sovereignty" is still used today to describe the principle of national sovereignty and non-interference in other nations' domestic affairs.

The other options are incorrect because: A) End of slavery - This occurred much later and wasn't related to the Peace of Westphalia C) Printing press - Was invented in the 15th century, before the Peace of Westphalia D) Colonial expansion - While important, this wasn't directly related to the Peace of Westphalia

The most significant impact of the Peace of Westphalia (1648) on modern international relations is B) Emergence of nation-state sovereignty.

The Peace of Westphalia, which ended the Thirty Years' War and the Eighty Years' War, established the principle that each state has exclusive sovereignty over its territory without external interference in domestic affairs. This concept, often called "Westphalian sovereignty," is widely considered a foundational principle of the modern international system.

The other options are incorrect because: - A) The Peace of Westphalia did not address slavery, which continued for centuries afterward - C) The printing press was invented by Gutenberg around 1440, about 200 years before these treaties - D) While colonial expansion was occurring during this period, it wasn't a direct result of the Peace of Westphalia

This treaty system's emphasis on territorial integrity and non-interference remains central to international law and diplomacy today.

The correct answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is widely considered a foundational moment in modern international relations because it established the principle of state sovereignty. This peace agreement, which ended the Thirty Years' War, introduced several key concepts that still shape international relations today:

1. Territorial sovereignty - The principle that states have exclusive authority within their territorial boundaries
2. Non-interference - The idea that states should not interfere in the internal affairs of other states
3. Legal equality - All states, regardless of size or power, are legally equal in the international system

This "Westphalian system" became the foundation for the modern international order based on sovereign nation-states, replacing the previous medieval system where authority was more fragmented and overlapping (with the Church, Empire, and various feudal arrangements).

The other options are incorrect: - A) Slavery continued long after 1648 - C) The printing press was invented around 1440, well before Westphalia - D) While colonial expansion occurred during this era, it wasn't the primary outcome of the Peace of Westphalia

The correct answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is widely regarded as a foundational moment in the development of the modern international system. Its most significant contribution was establishing the principle of state sovereignty - the idea that states have supreme authority within their own territories and that other states should not interfere in their internal affairs.

This peace agreement, which ended the devastating Thirty Years' War in Europe, established several key principles that continue to shape international relations today:

1. Territorial sovereignty - Rulers had absolute authority within their defined borders
2. Non-interference - States agreed not to meddle in each other's domestic affairs
3. Legal equality - All states, regardless of size or power, were considered legally equal
4. Balance of power - The treaties helped establish a system where no single state could dominate others

This "Westphalian system" became the foundation for modern international law and diplomacy, making sovereignty the organizing principle of international relations that persists to this day, even as it faces challenges from globalization and international organizations.

The answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is widely regarded as the foundation of the modern international system because it established the principle of state sovereignty - often called "Westphalian sovereignty."

Here's why this was so significant:

Key principles established: - States have supreme authority within their own territories - External powers should not interfere in the domestic affairs of other states - Religious and political autonomy for individual states - Equality between states regardless of size or power

Impact on international relations: - Created the framework for the modern nation-state system - Ended the era where religious authorities (like the Pope) could claim political authority over multiple territories - Established the concept of territorial integrity - Set precedent for diplomatic immunity and formal treaty-making

This system became the foundation for how countries interact with each other to this day, making it far more significant to international relations than the other options listed. The Peace of Westphalia essentially created the "rules of the game" for how sovereign nations should coexist and interact with one another.

The other options are either historically inaccurate (the printing press predated Westphalia) or unrelated to the treaties' main achievements (slavery and colonial expansion weren't addressed in these agreements).

The correct answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is widely regarded as a foundational moment in modern international relations because it established the principle of state sovereignty. Here's why this is so significant:

Key Impacts:

1. Territorial Sovereignty - States gained the right to govern their own territories without external interference

2. Non-interference Principle - Established that states should not meddle in each other's internal affairs, particularly regarding religion

3. Legal Equality - Recognized states as legally equal entities in the international system, regardless of size or power

4. End of Religious Authority in Politics - Diminished the Pope's political power and the Holy Roman Empire's authority over European affairs

The "Westphalian System"

This framework became known as the Westphalian system, which remains the basis for modern international law and diplomacy. It marked the transition from feudal, empire-based governance to the nation-state system we recognize today.

The other options are incorrect: - A & D had nothing to do with these treaties - C The printing press was invented ~200 years earlier (c. 1440)

This treaty system ended the Thirty Years' War and fundamentally reshaped how nations interact on the world stage.

The most significant impact of the Peace of Westphalia (1648) on modern international relations is widely cited as:

B) Emergence of nation-state sovereignty

The Peace of Westphalia, which ended the Thirty Years' War and the Eighty Years' War, established key principles that shaped the modern state system:

1. Sovereignty: It recognized the authority of states (like France, Sweden, and the German principalities) to govern their own territories without external interference, laying the groundwork for the modern concept of state sovereignty.
2. Territorial Integrity: Borders became more formalized, reducing the overlap of feudal and religious jurisdictions.
3. Non-Intervention: The treaties discouraged external powers from interfering in the domestic affairs of other states, a precursor to modern international law.

While it didn’t directly address slavery (A), the printing press (C, invented earlier), or colonial expansion (D, which predated Westphalia), its legacy is foundational to today’s nation-state system and diplomatic norms.

Would you like a deeper dive into any specific aspect?

The most significant impact of the Peace of Westphalia (1648) on modern international relations is B) Emergence of nation-state sovereignty. Here's a detailed breakdown:

Why "B" is Correct:

1. Foundational Sovereignty:
   The treaties ended the Thirty Years' War by establishing the principle that each ruler had the exclusive right to govern their territory without external interference (especially from religious authorities like the Pope or the Holy Roman Emperor). This is the cornerstone of the Westphalian sovereignty model.

2. Territorial Integrity:
   States gained recognized control over defined borders, reducing overlapping feudal/religious claims. This created the framework for modern nation-states as the primary actors in international politics.

3. Non-Intervention:
   The principle that states should not intervene in the domestic affairs of other states became embedded in international law, shaping diplomacy for centuries.

4. Legal Equality:
   All sovereign states (regardless of size or power) were notionally granted equal status in international relations, a concept still reflected in organizations like the UN.

Why the Other Options Are Incorrect:

• A) End of Slavery:
  Slavery persisted globally for centuries after 1648. Westphalia focused on European statecraft, not human rights.
• C) Invention of the Printing Press:
  Johannes Gutenberg invented movable-type printing c. 1440, over 200 years before Westphalia.
• D) Colonial Expansion:
  Colonialism accelerated after Westphalia, but the treaties themselves dealt with intra-European conflicts, not overseas empires.

Lasting Legacy:

The Peace of Westphalia is often called the "constitution of modern international order." It replaced medieval hierarchies with a system of sovereign states, setting the stage for concepts like national self-determination, international treaties, and balance-of-power politics. While contemporary issues (e.g., globalization, human rights) challenge Westphalian norms, its influence remains foundational.

The most significant impact of the Peace of Westphalia (1648) on the development of modern international relations is often cited as B) Emergence of nation-state sovereignty.

The Peace of Westphalia concluded the Thirty Years' War and the Eighty Years' War in Europe. It led to a new system of political order in central Europe, later called Westphalian sovereignty, based upon the concept of a sovereign state. Prior to this period, overlapping claims of authority from the Holy Roman Emperor, the Pope, and other rulers often led to conflicts and unclear political boundaries. The treaties of Westphalia established the principle of territorial sovereignty, where each state has exclusive authority within its own borders and is equal in status to other states, regardless of size or power. This laid the groundwork for the modern nation-state system and the development of international law.

While the other options were important historical developments, they weren't directly linked to the Peace of Westphalia:

• A) End of slavery: The Peace of Westphalia did not address slavery, which continued for centuries afterward.
• C) Invention of the printing press: The printing press was invented in the mid-15th century, long before the Peace of Westphalia.
• D) Colonial expansion: While colonial expansion was ongoing during this period, the Peace of Westphalia itself did not initiate or significantly impact this process. The principles established at Westphalia, however, would eventually be applied to colonies as they gained independence.

The correct answer is B) Emergence of nation-state sovereignty.

Here's why:

• The Peace of Westphalia (1648) is widely considered a turning point in international relations because it established the principle of nation-state sovereignty. This means that each nation-state has the right to govern its territory without external interference, and is recognized as an equal actor in the international system. This was a departure from the previous order, where authority was often derived from empires, religious institutions, or other hierarchical structures.

Let's look at why the other options are not the primary impact:

• A) End of slavery: While the abolition of slavery is a significant historical development, it's not directly tied to the Peace of Westphalia. The movement to end slavery occurred much later.
• C) Invention of the printing press: The printing press was a revolutionary invention, but it predates the Peace of Westphalia and its primary impact was on the spread of information and ideas, not the structure of international relations.
• D) Colonial expansion: Colonial expansion was certainly a major feature of the post-Westphalian world, but it was more of a consequence of nation-state competition and power dynamics than a direct result of the Peace of Westphalia itself. The Peace of Westphalia provided a framework within which colonial expansion occurred.

Therefore, the establishment of nation-state sovereignty is the most significant and direct impact of the Peace of Westphalia on the development of modern international relations.

Hello! I'd be happy to help.

The most significant impact of the Peace of Westphalia on the development of modern international relations is B) Emergence of nation-state sovereignty.

Here's why:

• The Peace of Westphalia (1648): This treaty, which ended the Thirty Years' War, is a cornerstone of modern international relations. It established the principle that each state has the right to govern itself without external interference. This is known as state sovereignty.
• Nation-State Sovereignty: This principle meant that states recognized each other's right to exist and to control their own affairs within their borders. It laid the groundwork for the system of independent nation-states we see today.
• Why other options are not correct:
  • A) End of slavery: Slavery continued for centuries after the Peace of Westphalia.
  • C) Invention of the printing press: The printing press was important for the spread of information, but it is not directly related to the development of international relations.
  • D) Colonial expansion: Colonial expansion occurred after the Peace of Westphalia, but it was not a direct result of the treaty.

I hope this helps! Let me know if you have any other questions.

Ahoj! Ráda ti pomůžu s touto otázkou.

Nejvýznamnějším dopadem Vestfálského míru na rozvoj moderních mezinárodních vztahů je často citováno B) Vznik suverenity národních států.

Vestfálský mír, podepsaný v roce 1648, ukončil třicetiletou válku a osmdesátiletou válku. Ačkoli se jednalo o složitou sérii dohod, jedním z jeho klíčových důsledků bylo upevnění principu státní suverenity. To znamenalo, že:

• Vnitřní autorita: Každý stát měl mít výhradní autoritu nad svým územím a obyvatelstvem, bez vměšování vnějších mocností (jako byl Svatý římský císař nebo papež).
• Vnější nezávislost: Státy byly považovány za rovnocenné a nezávislé entity v mezinárodním systému.

Tento koncept položil základy pro systém, ve kterém dodnes fungují mezinárodní vztahy, kde je svět rozdělen na nezávislé suverénní státy.

Pojďme se podívat, proč ostatní možnosti nejsou tou správnou: * A) Konec otroctví: Otroctví pokračovalo po staletí po Vestfálském míru a jeho ukončení nebylo přímým důsledkem těchto smluv. * C) Vynález knihtisku: Knihtisk byl vynalezen v 15. století, tedy dlouho před Vestfálským mírem. Ačkoli měl obrovský dopad na šíření informací, nebyl důsledkem Vestfálského míru. * D) Koloniální expanze: Koloniální expanze probíhala již před Vestfálským mírem a pokračovala i po něm. Zatímco mír ovlivnil mocenské poměry v Evropě, nebyl jejím primárním důsledkem nebo spouštěčem koloniální expanze.

Doufám, že ti to pomohlo!

That's a great question exploring a pivotal moment in history!

The correct answer is B) Emergence of nation-state sovereignty.

Here's a more detailed explanation:

The Peace of Westphalia, concluded in 1648, ended the Thirty Years' War in the Holy Roman Empire and the Eighty Years' War between Spain and the Dutch Republic. Its most significant and lasting impact on the development of modern international relations is widely considered to be the formal recognition and institutionalization of the principle of state sovereignty.

Here's why:

1. Recognition of Sovereign States: The treaties recognized the individual princes and rulers of the Holy Roman Empire as sovereign within their own territories. They were granted the right to make their own laws, choose their own religion (extending the principle of cuius regio, eius religio – "whose realm, his religion"), and conduct their own foreign policy, including forming alliances and waging war, without interference from the Holy Roman Emperor or the Pope.
2. Foundation of the Modern State System: This established the idea of a community of independent, sovereign states, each with supreme authority within its own borders. This is the bedrock upon which the modern international system is built.
3. Non-Interference: Implicitly, it laid the groundwork for the principle of non-interference in the internal affairs of other sovereign states.
4. Equality of States (in principle): While power dynamics always existed, the Westphalian system moved towards a framework where states, regardless of size or power, were considered legally equal in their sovereignty.
5. Decline of Supranational Authority: It marked a significant decline in the universalist claims of the Papacy and the Holy Roman Empire over European political affairs, shifting power to individual states.

Let's look at why the other options are less fitting: * A) End of slavery: The abolition of slavery was a much later historical development, largely occurring in the 19th century. The Peace of Westphalia did not address this issue. * C) Invention of the printing press: The printing press was invented by Johannes Gutenberg around 1440, over two centuries before the Peace of Westphalia. While it had a profound impact on the Reformation and the spread of ideas that contributed to the conflicts leading to Westphalia, the peace treaties themselves didn't cause its invention. * D) Colonial expansion: Colonial expansion by European powers was already well underway before 1648 and continued long after. While the shifting power dynamics in Europe (influenced by Westphalia) certainly affected how colonial empires developed, the core impact of Westphalia on international relations itself was the structuring of Europe into sovereign states.

So, the establishment of the principle that states are sovereign entities, supreme within their own borders and equal in their sovereignty to other states, is the crucial legacy of the Peace of Westphalia for modern international relations. It's often seen as the birth certificate of the modern nation-state system!

The correct answer is:
B) Emergence of nation-state sovereignty

The Peace of Westphalia, signed in 1648, is often cited as the event that marked the beginning of the modern international system based on the concept of state sovereignty, where each state has authority over its own territory and domestic affairs, free from external interference.

The most significant impact of the Peace of Westphalia on the development of modern international relations is:

B) Emergence of nation-state sovereignty

The Peace of Westphalia (1648) is widely regarded as marking the beginning of the modern international system based on the recognition of sovereign states with authority over their own territory, which established the principle of state sovereignty that underpins international law and relations today.

The most significant impact of the Peace of Westphalia on the development of modern international relations is B) Emergence of nation-state sovereignty.

The Peace of Westphalia, signed in 1648 to end the Thirty Years' War in Europe, is widely regarded as a pivotal event in shaping the modern international system. It established the principles of territorial sovereignty and non-interference, which laid the foundation for the concept of nation-states as the primary actors in international relations. This treaty marked a shift away from purely religious or dynastic conflicts and helped to create a framework where states are recognized as independent and equal entities.

Options like the end of slavery, invention of the printing press, or colonial expansion are important historical developments but are not directly associated with the Westphalian system of sovereignty and statehood.

So, the correct answer is: B) Emergence of nation-state sovereignty.

The most significant impact of the Peace of Westphalia on the development of modern international relations is often cited as the B) Emergence of nation-state sovereignty.

The Peace of Westphalia, which concluded in 1648, ended the Thirty Years' War in Europe and is credited with laying the foundations for the modern international system of states. It established the principles of territorial integrity and political sovereignty, recognizing the authority of each state to govern itself without external interference. This marked a significant shift from the more fluid and overlapping sovereignties characteristic of medieval Europe to a system where states were recognized as the primary actors in international relations, each with control over its own territory and domestic affairs.

The most significant impact of the Peace of Westphalia, which concluded in 1648, on the development of modern international relations is B) Emergence of nation-state sovereignty.

The Peace of Westphalia is often regarded as a turning point in the establishment of a system of sovereign states, as it marked the end of the Thirty Years' War in Europe and laid the groundwork for the concepts of national sovereignty and territorial integrity. This treaty recognized the rights of states to govern themselves without external interference, thereby shaping the modern international order based on the principle of sovereignty and contributing to the development of the state system that we see today.

If you have any more questions or need further clarification, feel free to ask!

B) Emergence of nation-state sovereignty

The Peace of Westphalia (1648) is widely credited with establishing the principle of state sovereignty and noninterference, foundational to the modern international system.

Correct answer: B) Emergence of nation-state sovereignty.

Brief explanation: The Peace of Westphalia (1648) ended the Thirty Years' War and is widely credited with establishing the principles of territorial sovereignty and non‑interference in the internal affairs of states—foundations of the modern nation‑state system and international law. Options A, C, and D are unrelated to the main impact of Westphalia.

B) Emergence of nation-state sovereignty.

Explanation: The Peace of Westphalia (1648) is widely credited with solidifying the concept of state sovereignty and non-interference in internal affairs, laying the groundwork for the modern system of international relations based on independent, equal states.

The most significant impact of the Peace of Westphalia on the development of modern international relations is often cited as B) Emergence of nation-state sovereignty.

Signed in 1648, the Peace of Westphalia ended the Thirty Years' War and the Eighty Years' War, marking a pivotal moment in European history. One of its key outcomes was the establishment of the principle of state sovereignty, where each state had the right to govern its territory without external interference. This concept laid the groundwork for the modern system of nation-states and remains a cornerstone of international relations.

If you're interested in visualizing historical events like the Peace of Westphalia, remember there's an option called "image generation" in the input form that you can turn on!

Hello! The correct answer to your question is B) Emergence of nation-state sovereignty. The Peace of Westphalia, signed in 1648, is often cited as a foundational moment in the development of modern international relations because it established the principle of state sovereignty, where each state has exclusive authority over its own territory and internal affairs. This laid the groundwork for the modern system of nation-states.

If you're interested in visualizing this historical event or any related concept, remember there's an option called "image generation" in the input form that you can turn on to generate images related to your query. Let me know if there's anything else you'd like to know!

I'm glad to help with this question! The most significant impact of the Peace of Westphalia on the development of modern international relations is B) Emergence of nation-state sovereignty.

Explanation:

The Peace of Westphalia, signed in 1648, marked the end of the Thirty Years' War in Europe. It is widely regarded as a turning point in the history of international relations because it established the concept of sovereignty, meaning that each state has authority over its own territory and domestic affairs without interference from external powers. This laid the foundation for the modern system of nation-states, where countries are recognized as independent and equal entities under international law.

Here’s why the other options are incorrect: - A) End of slavery: The Peace of Westphalia did not address slavery. The abolition of slavery came much later, primarily in the 19th century. - C) Invention of the printing press: The printing press was invented by Johannes Gutenberg around 1440, long before the Peace of Westphalia, and is unrelated to this treaty. - D) Colonial expansion: While colonial expansion occurred in the centuries following the Peace of Westphalia, it was not a direct result of the treaty. The treaty focused on European political structures rather than overseas expansion.

The principle of sovereignty from the Peace of Westphalia remains a cornerstone of international relations today, influencing how states interact, negotiate, and resolve conflicts. If you have any further questions or would like a deeper dive into this topic, feel free to ask! 😊

Hello! Thanks for your question about the Peace of Westphalia—it's a fascinating topic in the history of international relations. Let me break this down for you step by step.

The Correct Answer: B) Emergence of nation-state sovereignty

The Peace of Westphalia, signed in 1648, is widely regarded as one of the most pivotal events in shaping modern international relations, and its most significant impact was indeed the emergence of nation-state sovereignty. Here's why:

• What it meant at the time: The treaties ended the Thirty Years' War (a devastating conflict in Europe) and established key principles that shifted power dynamics. For the first time, it recognized that individual states (or nations) had the right to govern themselves without interference from external authorities, such as the Holy Roman Emperor or the Pope. This included the idea of "cuius regio, eius religio" (whose realm, his religion), which allowed rulers to determine the religion of their territories, further emphasizing state autonomy.

• Its lasting impact on modern international relations: This concept of sovereignty became the foundation for the modern nation-state system. It influenced the development of international law, diplomacy, and organizations like the United Nations. Today, sovereignty is a core principle in treaties and global interactions, meaning that countries have the ultimate authority over their internal affairs, as long as they respect the sovereignty of others. This has helped promote concepts like non-intervention, balance of power, and equality among nations, which are central to how we handle global conflicts and cooperation.

In short, the Peace of Westphalia marked a shift from a Europe dominated by empires and religious authorities to one based on independent states, which is why it's often called the "birth of the modern international order."

Why the Other Options Aren't the Best Fit:

Just to provide a complete picture, let's quickly address the other choices: - A) End of slavery: This isn't connected to the Peace of Westphalia at all. Slavery persisted in various forms for centuries after 1648 and wasn't addressed until much later, such as through the abolitionist movements in the 18th and 19th centuries.

• C) Invention of the printing press: The printing press was actually invented by Johannes Gutenberg in the 15th century, well before the Peace of Westphalia. While it revolutionized communication and helped spread ideas during the Reformation and wars leading up to 1648, it wasn't a direct outcome of the treaties.

• D) Colonial expansion: European colonial powers were already engaged in expansion before and after the Peace of Westphalia, but the treaties themselves focused on European affairs and didn't directly drive or halt colonialism. Colonialism continued to evolve independently through the 17th to 20th centuries.

If you'd like more details on any of this—like the historical context of the Thirty Years' War or how sovereignty plays out in today's world—feel free to ask. I'm here to help! 😊

Hello! That's a great question about historical international relations. The Peace of Westphalia (signed in 1648) is a pivotal event often credited with shaping the modern state system.

The most significant impact it's cited for is B) Emergence of nation-state sovereignty. This treaty helped establish the idea that nations are sovereign entities with the right to govern their own internal affairs without external interference, laying the groundwork for today's international order.

The other options don't align: - A) End of slavery: This wasn't addressed in the treaty. - C) Invention of the printing press: That happened much earlier (around 1440) and isn't connected. - D) Colonial expansion: The treaty focused on European conflicts, not overseas empires.

If you'd like more details on the Thirty Years' War or the treaty's broader effects, just let me know—I'm happy to dive deeper! 😊

The Peace of Westphalia (1648) is widely credited with laying the foundation for the modern state system by establishing the principle of sovereign equality among states. Hence, the most significant impact on the development of modern international relations is option B) the emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is most often cited for marking the Emergence of nation-state sovereignty—answer B.

The correct answer is B) Emergence of nation-state sovereignty.

The Peace of Westphalia (1648) is often cited as a turning point that paved the way for the modern system of sovereign nation-states. It marked the end of the Thirty Years' War in Europe and introduced principles such as non-interference in the internal affairs of states, which later became a cornerstone of international law and relations. This shift helped shape the political landscape of Europe and the world by establishing clear territorial boundaries and the autonomy of states in conducting their affairs without external interference.

The answer is B) Emergence of nation-state sovereignty.

Explanation:
The Peace of Westphalia (1648) is widely regarded as the birth of the modern international system because it established the principle that each state has authority over its territory and domestic affairs, free from external interference. This “Westphalian sovereignty” underpins contemporary international relations.