SA-6, unknown artist, 1978. The SA-6 “Gainful” is a low-to-medium-altitude surface-to-air missile system. It first saw action in the 1973 Middle East War and was used most recently against NATO forces in Kosovo campaign in the 1990s. Variations of the SA-6 are in service today with many countries, including Russia, Syria, India, and Poland. (DIA Military Art Collection)