The 377th Theater Sustainment Command (TSC) is a unit of the US Army. The unit was activated in New Orleans, Louisiana November 1948 as the 377th Transportation Major Port. On September 11, 1950 the 377th was called to Camp Kilmer, New Jersey. Later, the unit moved to Fort Eustis, Virginia and stayed on active Federal Service until October 10, 1952. From 1953 until 1963, the 377th remained in a Reserve status and experienced several changes in unit designation.