The first Redeployment of Forces from Germany took place in 1968, with the removal of about 28,000 military personnel from Germany. The units and personnel withdrawn remained committed to NATO and during REFORGER I – Return of Forces to Germany – conducted in January 1969, more than 12,000 soldiers returned to Germany for an exercise using pre-positioned equipment. In the late 1960s and early 1970s, the needs of the war in Vietnam reduced USAREUR's assigned strength, sometimes drastically. As the war began to wane, forces began to return to Europe, and USAREUR adopted a new system based upon the community commander concept. In 1974, efforts to streamline the headquarters resulted in the termination of the U.S. Theater Army Support Command, and its replacement by a smaller organization, the 21st Theater Army Area Command, now known as 21st Theater Sustainment Command (TSC). In the 1970s, USAREUR continued to improve its firepower when it received the new M16A1 rifle, the TOW anti-tank weapon, the OH-58 Kiowa observation helicopter, and the AH-1G Cobra helicopter. During the 1970s, force protection concerns grew as Palestinian groups brazenly conducted terror operations in Europe, such as the kidnapping of Israeli athletes during the 1972 Munich Olympics, and the Red Army Faction and the Red Brigades targeted U.S. facilities and personnel with bombings, kidnapping and assassinations. In May 1972 bombs exploded at V Corps headquarters in Frankfurt, killing an Army lieutenant colonel, and in Heidelberg at Campbell Barracks, killing three Soldiers. U.S. installations were attacked sporadically throughout the remainder of the decade, including a failed 1977 attack on a U.S. Army post in Giessen. On 15 September 1981, an assassination attempt was made on USAREUR commander Gen. Frederick J. Kroesen and his wife as they were driving through Heidelberg—the automobile trunk lid deflected the RPG-7 anti-tank projectile. In 1985 Army Specialist Edward Pimental was lured out of a Wiesbaden nightclub and killed for his ID card which was then used to enter Rhein-Main Air Base the next day to plant a bomb that killed two. And in 1986 a bombing at a Berlin disco frequented by service members killed two Soldiers. With increased combat and support components in place, the command undertook a wide-ranging modernization in the decade of the 1980s. More than 400 new systems were introduced, including individual weapons, field rations, the M1A1 Abrams tank, the M2 and M3 Bradley series of infantry and cavalry fighting