Cold War: A state of geopolitical tension between the United States-led Western Bloc and the Soviet Union-led Eastern Bloc after World War II. It involved ideological clashes rather than direct military conflict.
Iron Curtain: A term coined by Winston Churchill referring to the division between communist-controlled Eastern Europe and democratic Western Europe during the Cold War era.
Diplomacy: The practice of conducting negotiations and maintaining relationships between countries through dialogue rather than resorting to force.