# data[].attributes.body
Non-intervention emerged alongside sovereignty, emphasizing that states should not interfere in the internal affairs of others. Historically, it reinforced the Westphalian order and became enshrined in the UN Charter. Its evolution has been marked by tensions with humanitarian concerns, as interventions in places like Kosovo (1999) and Libya (2011) tested its limits. In practice, non-intervention has influenced diplomacy by setting boundaries for state behavior, yet it also sparked debates about when international action is justified. This tension continues to shape diplomatic negotiations on peacekeeping and humanitarian intervention.

# data[].attributes.body
Sovereignty has historically developed from the Peace of Westphalia (1648), which established the principle of state authority over defined territories and populations. Over time, this concept evolved to become the cornerstone of international law, framing how states interact without external interference. In practice, sovereignty has influenced diplomacy by ensuring that each nation, regardless of size or power, maintains its legitimacy in international relations. However, as global governance expanded through institutions like the United Nations, sovereignty has been challenged by collective security measures and human rights interventions, reshaping its application in modern diplomacy.

It supports the principle of Non-Intervention, since respecting sovereignty means refraining from interfering in another country’s domestic matters.

# data[].attributes.body
The balance of power emerged in early European diplomacy, particularly in the 17th and 18th centuries when states like Britain, France, and Austria sought to prevent domination by any single power. Key milestones include the Treaty of Westphalia (1648) and the Congress of Vienna (1815), which formalized the principle through shifting alliances. In practice, it shaped systems like the Cold War’s bipolar order, where the U.S. and the Soviet Union checked each other’s influence to avoid direct conflict. While it promotes sovereignty by limiting external domination, the balance of power can also intensify rivalries, sometimes clashing with the principle of peaceful coexistence.

# data[].attributes.body
The historical development of the balance of power traces back to early European diplomacy, especially during the 17th and 18th centuries when nations like Britain, France, and Austria sought to prevent any single state from dominating the continent. It evolved most notably through the Treaty of Westphalia (1648) and later the Congress of Vienna (1815), which institutionalized the idea of restraining hegemonic ambitions through alliances and counter-alliances. Its practical application has been evident in the Cold War bipolar system, where the United States and the Soviet Union balanced one another’s global influence to prevent escalation into direct war. Over time, this principle has influenced international relations by creating a framework where stability is maintained through calculated equilibrium, though it has also been criticized for justifying militarization and rival blocs. Collective Security conflicts with Sovereignity which requires states to act together, even if it means intervening in the internal affairs of another country to preserve international peace. However, Collective Security relies on Multilateralism (cooperation of many states).

# data[].attributes.body
Multilateralism developed prominently after World War II with the establishment of institutions such as the United Nations, World Bank, and later the World Trade Organization. Historically, it evolved as a response to the failures of unilateralism and bilateral alliances that contributed to global conflicts. In practice, multilateralism applies to issues like trade negotiations, climate change agreements, and collective peacekeeping. Its influence on international relations has been to promote cooperation, legitimacy, and shared responsibility, though it faces challenges from rising nationalism and unilateral policies. Diplomatically, it remains a cornerstone of managing global interdependence. Multilateralism strengthens Negotiation & Dialogue, as decisions are reached through international forums and cooperation. It also supports Peaceful Coexistence, since global issues like security, trade, and climate change require collaborative solutions.

# data[].attributes.body
The principle of peaceful coexistence developed during the Cold War, particularly promoted by the Soviet Union under Khrushchev as a way to manage ideological rivalry without resorting to war. It evolved into a broader concept of respecting differences in political and social systems while maintaining stability through dialogue and cooperation. In practice, it influenced détente policies and later informed frameworks for coexistence among diverse states in the globalized era. Its diplomatic impact has been significant in creating space for pluralism in international relations, encouraging cooperation despite ideological or cultural divides, and reinforcing the idea that peace is possible without uniformity. t is reinforced by Negotiation & Dialogue, Multilateralism, and sometimes even Détente, which works to reduce hostilities between rival powers.

# data[].attributes.body
The historical roots of diplomacy through dialogue can be traced to ancient civilizations, where emissaries mediated disputes to avoid costly wars. It evolved into a formalized system during the Renaissance, with permanent embassies and professional diplomats becoming the norm. Today, it is practiced through bilateral talks, multilateral summits, and institutions like the United Nations. This principle has influenced international relations by institutionalizing communication as the first line of defense against conflict, seen in examples such as the Camp David Accords or the Iran nuclear negotiations. Its enduring value lies in fostering peaceful settlements and reducing the likelihood of escalation. They support Détente by helping reduce tensions, and they reinforce Peaceful Coexistence by offering peaceful alternatives to conflict. Negotiation is also crucial for balancing Nationalism and international cooperation, since it allows states to pursue their interests without escalation.

# data[].attributes.body
Nationalism rose in the late 18th and 19th centuries, driven by the French Revolution and anti-colonial struggles, creating modern nation-states and legitimizing sovereignty. In the 20th century, it took both constructive and destructive forms—fueling world wars but also inspiring decolonization in Asia and Africa. In international relations, nationalism has shaped diplomacy by influencing statehood negotiations, independence movements, and recognition of new states. While it strengthens unity and self-determination, extreme nationalism often undermines cooperation and peace.

# data[].attributes.body
Détente emerged during the Cold War as a strategic shift in U.S.-Soviet relations, particularly during the 1970s, aimed at easing tensions through dialogue, arms control treaties, and cultural exchanges. Historically, it evolved as a pragmatic response to the dangers of nuclear escalation and economic strains on both superpowers. Its application was evident in agreements like the Strategic Arms Limitation Talks (SALT) and the Helsinki Accords. While détente eventually weakened with renewed hostilities in the 1980s, it left a lasting influence by showing that sustained dialogue could temper ideological rivalry. Diplomatically, it underscored the utility of pragmatism and gradual trust-building in international relations. It helps balance Nationalism, which can sometimes strain relations when states prioritize their own interests over global cooperation.

# data[].attributes.body
Diplomatic immunity has ancient roots in practices that protected envoys from harm, formalized in modern times through the 1961 Vienna Convention on Diplomatic Relations. It evolved from customary law into a codified system ensuring diplomats can perform duties without coercion or interference from host states. Its practical application is seen daily in the functioning of embassies and international organizations, safeguarding envoys even in times of tension. While sometimes controversial when abused, its influence on diplomacy is fundamental, as it maintains channels of communication and ensures that diplomacy remains viable even amid conflict. Is essential for the functioning of Negotiation & Dialogue. By protecting diplomats, it ensures that channels of communication remain open even in times of crisis, thereby supporting peacebuilding and stability.