Arthur D. Nicholson

Further negotiations over the shooting resulted in the Soviets issuing instructions to their personnel that the use of force or weapons against Allied military liaison personnel was strictly forbidden. However, in 1987, another incident took place in which Soviet soldiers fired at USMLM personnel, one of whom was wounded. In 1988, Soviet Defense Minister Dmitry Yazov officially apologized for the death of Major Nicholson to U.S. Defense Secretary Frank C. Carlucci at a summit conference in Moscow.

On March 24, 1985, with Sergeant Jessie G. Schatz, Nicholson undertook his final mission for the USMLM. The mission was to photograph a Soviet tank storage building near Ludwigslust, some 100 miles northwest of Berlin. After approaching the Soviet facility covertly but legitimately through an adjacent forest, Nicholson stepped out of the vehicle and approached the building to photograph it while Sergeant Schatz maintained a watch for Soviet personnel.

On March 30, 1985, Nicholson was buried at Arlington National Cemetery. He was posthumously awarded the Purple Heart and the Legion of Merit as well as promoted to lieutenant colonel.

In 1982, Nicholson was assigned to the U.S. Military Liaison Mission (USMLM) to the Commander-in-Chief of the Group of Soviet Forces Germany. He was promoted to major in 1983.

Following this, Nicholson became a foreign area officer. In 1980, he earned a master's degree in Soviet and East European studies from the Naval Postgraduate School and also attended a two-year course in the Russian language at the Defense Language Institute. From 1980 to 1982, Nicholson attended the U.S. Army's Russian Institute in Garmisch-Partenkirchen, Germany.

Nicholson was commissioned as a military intelligence (MI) officer and served as a Battalion S-2 (officer in charge of the staff section responsible for intelligence products and analysis) with a missile battalion in Korea during 1973 and 1974. From 1974 to 1979, he served with MI units in Frankfurt am Main and Munich in the Federal Republic of Germany.

Nicholson was the son of a career navy officer. He graduated from Joel Barlow High School of Redding, Connecticut, in 1965 and earned a bachelor's degree from Transylvania University in 1969 before joining the U.S. Army in 1970.

Arthur D. Nicholson Jr. (7 June 1947 – 24 March 1985) was a United States Army military intelligence officer shot by a Soviet sentry while engaged in intelligence-gathering activities as part of an authorized military liaison mission which operated under reciprocal U.S.–Soviet authority. Military liaison missions were ostensibly liaisons between the British, French and U.S. forces and the Group of Soviet Forces in Germany (East Germany), but they had a known intelligence-gathering secondary mission and an important role to verify that offensive action was not being prepared. Reciprocal groups were authorized and operated by both the British, French and U.S. (in East Germany) and the Soviet Union (in West Germany) during the Cold War. Nicholson is officially regarded by the U.S. Department of Defense as having been a victim of murder and the final victim of the Cold War. Nicholson's death led to a U.S. – Soviet crisis and intense negotiations regarding the military liaison missions.

Following this, a Soviet diplomat was ordered out of the U.S. and the U.S. canceled plans to jointly celebrate the 40th anniversary of the end of the Second World War in Europe with the Soviets.