US Combat Troops Roll Through Saigon: for the first time, US combat troops members of the 173rd US Airborne Brigade, roll through the streets of Saigon, South Vietnamese capital. About 1000 men arrived at Saigon waterfront and were moved in heavily guarded convoy today to Bein Hoa air base where they will guard the facility. Residents watch from the curbs, May 12, 1965