The Pacific Rim refers to the countries an cities located around the edge of the Pacific Ocean. There are many economic centers around the Pacific Rim, such as Auckland, Brisbane, Ho Chi Minh City, Hong Kong, Lima, Los Angeles, Manila, Melbourne, Panama City, Portland, San Diego, San Francisco, Santiago, Seattle, Seoul, Shanghai, Singapore, Sydney, Taipei, Tokyo, Vancouver, and Yokohama. Honolulu is the headquarters of various intergovernmental and non-governmental organizations of the Pacific Rim including the East-West Center and the Institute of Asian Research. In addition, the RIMPAC exercise is coordinated by United States Pacific Command which is headquartered in Honolulu.