Foreign policy shapes how nations interact on the global stage, balancing national interests with international cooperation. It encompasses diplomacy, economic strategies, and military decisions, all aimed at protecting a country's security and prosperity while navigating complex global challenges. Key concepts like national interest, sovereignty, and balance of power guide foreign policy decisions. Historical events, from the Peace of Westphalia to the Cold War, have shaped modern approaches. Today, nations grapple with issues like terrorism, climate change, and shifting global power dynamics.