President Ronald Reagan and Mikhail Gorbachev.

U.S. President Ronald Reagan and Soviet General Secretary Mikhail Gorbachev signing the INF Treaty in the East Room at the White House in 1987. The Intermediate-Range Nuclear Forces Treaty (INF) is a 1987 agreement between the United States and the Soviet Union. The treaty eliminated nuclear and conventional ground-launched ballistic and cruise missiles with intermediate ranges. (Photo Credit: White House Photo Office)