History of the Military Assistance Command, Vietnam (MACV). MACV was created on February 8, 1962, to increase assistance to South Vietnam as well as to command and control all advisory and assistance efforts in Vietnam. The command was dissolved on March 29, 1973, after the withdrawal of U.S. combat troops from Vietnam. MACV was the highest level of command “in-country.” Therefore, the history of MACV is really the military history of the Vietnam War.