High Quality Content by WIKIPEDIA articles! The Intermediate-Range Nuclear Forces Treaty (INF) is a 1987 agreement between the United States and the Soviet Union. Signed in Washington, D.C. by U.S. President Ronald Reagan and General Secretary Mikhail Gorbachev on December 8, 1987, it was ratified by the United States Senate on May 27, 1988 and came into force on June 1 of that year. The treaty is formally titled The Treaty Between the United States of America and the Union of Soviet Socialist Republics on the Elimination of Their Intermediate-Range and Shorter-Range Missiles.