SB-26 is a long-range surface-to-air missile developed by the Soviet Union in the 1950s. It was designed to be fired from fixed launch rails that would be attached to the ground. The missile was partially guided by an on-board optical tracking system and capable to reach high altitudes and long ranges. The missile was also capable of intercepting bomber aircraft and nuclear-tipped missiles. The SB-26 missile played an important role in the Cold War as part of the Soviet Union’s air defense system.