When does Tour of Duty return?

Tour of Duty is an American military drama television series based on events in the Vietnam War. The series ran for three seasons, from September 24, 1987, to April 28, 1990, for a total of 58 one-hour episodes. It was the first television series to regularly show Americans in combat in South Vietnam. The show won an Emmy Award in 1988 for Outstanding Sound Mixing for a Drama Series.