President J.F.Kennedy ordered reinforcements to Berlin (West). On Sunday August 20th 1961 (7 Days after the start of the Wall) , 1500 Soldiers of the 1st Battle Group, 18th Infantry (reinforced),moved by Road from West Germany to Berlin(West) and paraded through the City in full Battle gear in front ofVice President Lyndon B. Johnson. For the next 3 1/2 Years,a different infantry Battle group rotated through Berlin every 90days,asserting U.S. access rights by moving over the „Autobahn“ through communist-controlled territory.
4-18 Infantry was reflagged on 13 September 1972 as the 4th Battalion, 6th Infantry