SALT I, or the Strategic Arms Limitation Treaty, was a treaty between the United States and the Soviet Union. The SALT I limited the U.S. and the Soviet Union to their 1972 levels of Ballistic missiles. | SALT I, or the Strategic Arms Limitation Treaty, was a treaty between the United States and the Soviet Union. The SALT I limited the U.S. and the Soviet Union to their 1972 levels of Ballistic missiles. |