The Carnegie Endowment for International Peace (CEIP) is the oldest U.S. think tank dedicated to advancing international peace, founded in 1910 by philanthropist Andrew Carnegie with an endowment of $10 million. Established as a private, nonprofit entity to foster global cooperation, mitigate conflict, and promote active U.S. engagement in world affairs, it emphasizes nonpartisan research, analysis, and dialogue on pressing issues including nuclear non-proliferation, democracy promotion, economic development, and regional security challenges. Headquartered in Washington, D.C., it operates globally with centers in Europe (Brussels and Moscow), South Asia (New Delhi), East Asia (Beijing and Taipei), the Middle East (Beirut), and additional U.S. offices, engaging leaders across political divides to address topics such as U.S.-China relations, Middle East peace processes, and global governance. CEIP features overlapping membership and collaborative events, and since receiving tax-exempt status in 1953, it has published influential reports, hosted high-level dialogues, and contributed to major policy debates, solidifying its role as a bridge between nations. Its work is supported by its endowment and contributions, maintaining independence while collaborating with diverse stakeholders to address transnational threats and opportunities.