This document provides an overview of global conflicts and international orders. It discusses the main causes of armed conflicts and models of international order such as hegemonic order and balance of power. It then analyzes six contemporary threats to peace and security, including socioeconomic threats, proliferation of weapons of mass destruction, terrorism, and transnational crime. The document examines how internal and global conflicts have become interconnected. It provides historical context on globalization of conflict since World War I and analyzes the global dimensions and ideological aspects of World Wars I and II.