San Francisco System
The San Francisco System (also known as the "Hub and Spokes" architecture) is a network of alliances pursued by the United States in the Asia-Pacific region, after the end of World War II – the United States as a "hub", and Japan, South Korea, Taiwan, the Philippines, Thailand, Australia, and New Zealand (and historically, also South Vietnam) as "spokes". The system is made of bilateral political-military and economic commitments between the United States and its Asia-Pacific allies.