Rim of the Pacific Exercise; An Outline of All Things RIMPAC The Rim of the Pacific Exercise, commonly referred to as RIMPAC, is the world's largest international maritime warfare exercise. The exercise is held biennially in the waters around Hawaii and Southern California, and it is hosted by the United States Pacific Fleet. RIMPAC was first held in 1971 and has grown to become a significant event in the international military calendar, with participation from over 20 countries. Introduction Brief history of RIMPAC RIMPAC was first conducted in 1971, with the United States inviting participants from Canada, Australia, and New Zealand. Since then, RIMPAC has grown to include more than 20 countries, making it the largest international maritime warfare exercise in the world. Purpose of RIMPAC The primary goal of RIMPAC is to strengthen international relations between participating countries by conducting joint training exercises in maritime security and defense. The exercise aims t...