The EU-US strategic partnership represents one of the most significant transatlantic relationships in world affairs, rooted in shared history, values, and mutual interests. Emerging after the devastation of the Second World War, the United States played a central role in supporting European recovery through the Marshall Plan, while also encouraging European integration as a means of stabilizing the continent. From the early years of the Cold War to the present, this partnership has been shaped by cooperation, competition, and adaptation to global challenges. The transatlantic bond, often described as the “West,” is anchored in democratic governance, free market economies, and a commitment to security and multilateralism, though tensions occasionally arise over strategic priorities and methods of achieving common goals. In security and defense, the EU and US have a longstanding partnership, largely institutionalized through NATO. For decades, the United States has been the primary security guarantor of Europe, providing military support and strategic leadership during the Cold War. The EU, on its part, has gradually developed its own security and defense identity, particularly through the Common Security and Defence Policy (CSDP). While some tensions exist over Europe’s dependence on American military power, recent crises, such as Russia’s aggression in Ukraine, have reinforced transatlantic unity. The US has pushed for greater European burden-sharing, while the EU has emphasized complementarity between NATO and its own defense