Jelaskan Sejarah penggunaan dari BTR-60

An order to enter the BTR-60P into Soviet Army service was issued on 13 December 1959. However, production didn't start until 1960. The first BTR-60Ps were delivered in 1960. It first entered service with the Soviet Army and later the Soviet naval infantry. The BTR-60 entered service with the Soviet military at the time when the USSR was arming on a mass scale. In the early 1960s, it replaced the BTR-152 in the role of the basic APC. The BTR-60P was first seen by the West in 1961. The BTR-60PA entered service with the Soviet Army in 1963, the BTR-60PA-1 and BTR-60PAI entered service in 1965, the BTR-60PB in 1966, the BTR-60PZ in 1972 and theBTR-60PBK in 1975. As newer models of the BTR-60 appeared, the older ones were gradually withdrawn from front-line service. A number of old BTR-60Ps were converted into repair vehicles.

The first use of Soviet BTR-60s during a conflict happened during the Warsaw Pact 1968 Invasion of Czechoslovakia. However, actual combat was scarce.

In the 1980s, most of the BTR-60s in the Soviet army had been replaced by the BTR-70 and BTR-80; however, a large number was still operated by second-line and border troops. According to the data provided by the USSR during the signing of the CFE Treaty in 1990, there were 4,191 BTR-60s in service with the units stationed in the European part of the Soviet Union.