Also in Laos, The road that came from China to Vietnam through Laos it was called the Ho Chi Minh trail; all the guns and food ammunition came down this road. The U.S. had to stop the flow of supplies and men into South Vietnam and thereby avoid the heavy toll in American and allied lives. With the bombing of North Vietnam, Laos and Cambodia by the Nixon administration in 1970-1971, the Vietnam War had become in the minds of many, a general Indochina war. And in fact the Vietnamization-program, in order to succeed, led to the expansion of American military activities into Cambodia, Laos and Thailand.