sentences:  However, they were used in many other countries.The performance of AAA in Vietnam against low-flying aircraft led the Soviets to bring back many guns from storage to supplement the Surface-to-Air Missiles, whose performance at low altitude was less than satisfactory.The S-60 and its Chinese copy (the Type 59) have seen combat in several wars all over the world—e.g., the Six-Day War and the Yom Kippur War in the Middle East, and the Soviet–Afghan War.