Unlike SALT II or START I, which set limits to maximum nuclear arsenals, the INF Treaty banned whole categories of intermediate-range tactical nuclear weapons outright. All ground-launched cruise missiles and ballistic missiles with ranges greater than 500 but less than 5500 kilometers were barred to the U.S. and USSR under this treaty. This meant the withdrawal of GLCM and Pershing II on the American side. The Soviets withdrew the GLCM's most direct counterpart, the SSC-4 or RK-55, and its supersonic follow-on, the SSC-X-5. In addition, various Soviet MRBMs, IRBMs, and LRBMs were withdrawn: the SS-4 Sandal, SS-5 Skean, SS-12 Scaleboard, SS-20 Saber, SS-22 Scaleboard B, and SS-23 Spider. All of these equivalent weapons had been developed and deployed against NATO forces before the introduction of the GLCM, despite the categorization of the GLCM deployment by communists as 'aggressive'.