The full name of the INF treaty is a 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(INF Treaty in short),an arms control treaty signed in 1987 between the United States and the Soviet Union.The Treaty clearly stipulates that the two signatories shall have in three years after the entry into force of the treaty their land-based ballistic missiles and cruise missiles within the range of 500km to 5500km together with their launch vehicles and support facilities completely eliminated.Later,the United States destroyed the"Pershing IA"short-range missiles,"Pershing II"medium-range missiles and land-based Tomahawk cruise missiles;while the Soviet Union destroyed its SS-12 and SS-23 short-range missiles and SS-20,SS-4 and SS-5 medium-range missiles.