The Army command Trieste United States Troops (TRUST) was established 1 May 1947[1] in accord with a protocol to the Treaty of Peace with Italy which created the Free Territory of Trieste as a new independent, sovereign State under a provisional regime of Government[2] and under the direct responsibility of the United Nations Security Council.[3]
According to the protocol, when the Italian peace treaty came into force, the United Kingdom, the United States and Yugoslavia were each authorized to station 5,000 troops in the Free Territory of Trieste. British Element Trieste Force (BETFOR) was the UK organization in the free territory.
The United States Army assigned the mission of providing troops for the Free Territory of Trieste to the 88th Infantry Division which was on occupation duty in Italy along the Morgan Line between Italy and Yugoslavia. The 351st Infantry Regiment[4][5] of the 88th Division was assigned as the major unit that would deploy to the free territory.[6] Major General Bryant E. Moore, commander of the 88th Division, was assigned to command TRUST.