United Nations 1945, 50 governments met in San Francisco for a conference and started drafting the UN Charter, which was adopted on 25 June 1945 in the San Francisco Opera House, and signed on 26 June 1945 in the Herbst Theatre auditorium in the Veterans War Memorial Building. This charter took effect on 24 October 1945, when the UN began operation. The UN's mission to preserve world peace was complicated in its early decades during the Cold War between the United States and Soviet Union and their respective allies. Its missions have consisted primarily of unarmed military observers and lightly armed troops
Transportation in the San Francisco Bay Area Air. Airport shuttle buses and vans provide services from the three major San Francisco Bay Area airports, namely San Francisco International Airport (SFO), Oakland International Airport (OAK), and San Jose International Airport (SJC) — Flat Rate Airport Taxi Cab and Car Service; BayPorter Express Airport Shuttle; Marin Airporter; Marin County Airport Shuttle; Monterey Airport Shuttle; Non Stop Airport Shuttle; Sonoma County Airport Express; SuperShuttle; and Cook Limousine Services. Public transportation in the San Francisco Bay Area is quite extensive, including one heavy rail/commuter rail system, one commuter rail line, two light rail systems, Amtrak inter-city rail service, and four major