The Association of Southeast Asian Nations (ASEAN) is Southeast Asia's primary multilateral organization. Established in 1967, it has grown into one of the world's largest regional fora, representing a strategically important group of 10 nations that spans critical sea lanes and accounts for 5% of U.S. trade. This report discusses U.S. diplomatic, security, trade, and aid ties with ASEAN, analyzes major issues affecting Southeast Asian countries and U.S.-ASEAN relations, and examines ASEAN's relations with other regional powers. Much U.S.