Editing MBT-70 (section)

===Concurrent developments===
By 1965 the German [[Leopard 1]] and the US [[M60 tank|M60]] were the newest main battle tanks in their respective country's service. They were armed with the [[M68 (tank gun)|M68]] 105&nbsp;mm rifled gun (developed from the [[Royal Ordnance L7|British 105mm L7]]) and designed to counter Soviet [[T-54/55]] tanks, which they successfully did, according to Israeli combat experience. But it became very clear that due to the same experience the next generation of [[Soviet Union|Soviet]] tanks would have increased firepower and protection, and both designs would be placed at a disadvantage by the new [[smoothbore]] gun in the [[T-62]]. An upgrade project for the Leopard was planned,<ref name="DerSpiegel" /> but it appeared this model would not be enough of an advance to be worthwhile.