Chieftain tank
During the late 1960s, the Israeli Army began collaborating on design notes for the Chieftain tank which had originally been introduced to British Army service, with a view to Israel purchasing and domestically producing the vehicle. Two prototypes were delivered as part of a four-year trial. However, it was eventually decided not to sell the marque to the Israelis (since, at that period of time in the late 1960s, the UK was more friendly towards the Arab states and Jordan than to Israel), which prompted them to follow their own development programme.