International conflict involves disputes between global actors, including states and non-state entities. Understanding these actors, their characteristics, and the concept of sovereignty is the foundation for analyzing why conflicts emerge and how they get resolved.
Conflicts stem from competing interests, territorial disputes, ideological differences, and resource scarcity. Historical grievances and cultural factors add further complexity. Resolution can take diplomatic forms like negotiation and mediation, or coercive forms like sanctions and military force.
Types of Actors
International Conflict Participants
International conflict involves disputes between two or more actors on the global stage. These actors fall into two broad categories.
State actors are countries with internationally recognized governments that conduct foreign policy and participate in international relations. What sets them apart is sovereignty, the authority and control a state holds over its territory and citizens. Sovereignty gives a state the right to govern itself without external interference.
Non-state actors are organizations, groups, or individuals that wield significant influence in international affairs without representing a particular country. These range widely in purpose and legitimacy. The United Nations facilitates cooperation between states. Multinational corporations shape global trade and investment. Terrorist groups like al-Qaeda or ISIS use violence to pursue political goals. What unites them is that none holds sovereignty over a territory the way a state does.
Characteristics of International Actors
- State actors possess legal sovereignty, which allows them to enter treaties, declare war, and join international organizations. The United States, China, and Russia are prominent examples.
- Non-state actors lack that formal legal status but still shape global events through their actions and influence. Amnesty International pressures governments on human rights, while the World Trade Organization sets rules for international commerce.
- The concept of sovereignty has evolved over time. Some states have voluntarily transferred aspects of their authority to supranational bodies like the European Union. Others face internal challenges from secessionist movements, such as Kurdish independence efforts in Iraq and Turkey, or Catalonia's push for independence from Spain.
- Globalization has expanded the power of non-state actors considerably, blurring the line between traditional state-based diplomacy and a more complex landscape where corporations, NGOs, and armed groups all play roles.

Causes of Conflict
Competing Interests and Objectives
Most international conflicts trace back to clashing goals between actors. These clashes tend to cluster around a few recurring themes.
- National interests encompass a country's economic, security, and political goals. When one state's interests directly conflict with another's, tensions rise.
- Territorial disputes occur when two or more states claim sovereignty over the same land or maritime area. The Kashmir conflict between India and Pakistan has persisted since 1947, and multiple countries assert overlapping claims in the South China Sea.
- Ideological differences in political systems, religious beliefs, or economic models can fuel prolonged hostility. The Cold War between the United States and the Soviet Union was driven by the fundamental clash between liberal capitalism and communism.
- Resource scarcity triggers conflict when states compete for control over essential materials like oil, water, or minerals. Iraq's 1990 invasion of Kuwait was motivated in large part by disputes over oil production and access to oil revenues.

Historical and Cultural Factors
Not all conflicts are about present-day interests. The past casts a long shadow.
- Historical grievances from past wars, colonialism, or perceived injustices keep tensions alive across generations. The Israel-Palestine conflict is rooted in competing claims that stretch back over a century. The legacy of the 1994 Rwandan genocide continues to shape politics in the Great Lakes region of Africa.
- Cultural and ethnic differences, especially when combined with political or economic inequality, can spark internal conflicts that spill across borders. The Bosnian War (1992-1995) grew from ethnic tensions within the former Yugoslavia. The Rohingya crisis in Myanmar forced hundreds of thousands of refugees into neighboring Bangladesh.
- Nationalist sentiments and self-determination can inspire secessionist movements and civil wars that draw in external actors. Kosovo declared independence from Serbia in 2008 with backing from Western states but opposition from Russia and China. Yemen's civil war has pulled in regional powers like Saudi Arabia and Iran.
Conflict Resolution Methods
Diplomatic Approaches
Diplomacy is the primary tool for resolving disputes without violence. It takes several forms depending on the number of parties and the complexity of the conflict.
- Bilateral talks engage the two main parties in direct discussions to address grievances and find mutually acceptable solutions. U.S.-China trade negotiations are a recent example.
- Multilateral negotiations bring together multiple stakeholders to tackle complex disputes. The Six-Party Talks on North Korea's nuclear program involved North Korea, South Korea, the U.S., China, Japan, and Russia.
- International organizations like the United Nations provide forums for diplomacy and can facilitate peace talks, monitor ceasefires, and deploy peacekeeping missions. The UN has mediated efforts toward Cyprus reunification for decades.
Coercive Measures
When diplomacy alone falls short, states and international bodies may turn to pressure tactics.
- Economic sanctions impose penalties on a state to pressure it into compliance with international demands. These can include trade restrictions, asset freezes, or travel bans. U.S. and international sanctions on Iran targeted its nuclear program by restricting oil exports and access to global banking.
- Coercive diplomacy combines the threat of force with ongoing negotiations to persuade an adversary to change course. The U.S. "maximum pressure" campaign against North Korea paired heavy sanctions with summit diplomacy.
- Military force involves using armed forces to compel an adversary to change its behavior. NATO's 2011 intervention in Libya is one example. This is generally considered a last resort because of its human and economic costs.
- Collective security arrangements like military alliances deter aggression and provide a framework for joint action. NATO's response to Russia's 2014 annexation of Crimea included troop deployments to Eastern Europe and coordinated sanctions, illustrating how alliances translate into concrete policy.