 This decision appeared to be correct when the British Army decided to adopt the EM-2 (as Rifle No.9 Mk1) and .280 British cartridge.This decision was later rescinded after the Labour Party lost the 1951 General Election and Winston Churchill returned as Prime Minister.It is believed that there was a quid pro quo agreement between Churchill and U.S. President Harry Truman in 1952 that the British accept the .30 Light Rifle cartridge as NATO standard in return for the U.S. acceptance of the FN FAL as NATO standard.