HHC moved to Nelson Barracks in Neu Ulm in 1971. Company A moved to Wilkins Barracks in Kornwestheim, then to Nelson Barracks in Neu Ulm in 1986. Company C moved to Wharton Barracks in Heilbronn in 1971. By 1974 HHC was at Wilkins Barracks in Kornwestheim, as was battalion headquarters. The unit defended the missile battalions from intruding protesters of the Nationalist Green Party and other elements. The mission of the 2d Battalion, 4th Infantry was to provide armed security, including patrols, of the Pershing nuclear missiles and missile storage sites; Mutlangen was the Missile Storage Site, and Inneringen (Company A), Von Steuben (Company B), and Red Leg (Company C) were the 3 Combat Alert Sites (CAS). Additional duties included protecting Pershing nuclear systems during field operations and dealing with numerous anti-nuclear protests, as well as a rigorous infantry training schedule. Initially, HHC (Hurons) and Company A (Apaches or Alpha) were stationed at Wilkins Barracks in Kornwestheim, outside of Stuttgart; Company B (Blackfeet) was stationed at Nelson Kaserne in Neu Ulm; and, Company C (Cherokees) was stationed at Wharton Barracks and ultimately moved to Badenerhof Kaserne, both in Heilbronn. HHC and Company A were relocated to Nelson Kaserne in Neu Ulm at some point. The 2nd Battalion, 4th Infantry participated in major exercises each winter at training areas such as Baumholder, Hohenfels, Wildflecken, and Grafenwoehr. This helped to prepare the unit for encounters with Warsaw Pact military forces in the event of an assault on the missile sites. This was considered a very real possibility during the years of the Cold War. In addition each of the line companies rotated each year to Doughboy City, Berlin to train in military operations in an urban terrain (MOUT). On 18 August 1971, soldiers from the heavy mortar platoon from battalion headquarters were being transported from Ludwigsburg to Grafenwoehr for live fire training exercises aboard a CH-47A helicopter. The helicopter crashed and exploded, killing all 38 on board, including four members of the 4th Aviation Company. On 17 January 1986 the battalion was withdrawn from the Combat Arms Regimental System and reorganized under the United States Army Regimental System. The signing of the Intermediate Nuclear Forces (INF) Treaty (1987), the fall of the Berlin Wall 1989, and the demise of the Soviet Union (1991) signaled the end of the Cold War and resulted in the eventual inactivation of the 2d Battalion, 4th Infantry.