Challenger 2 is a British main battle tank in service with the British Army. It is the successor to the Challenger 1 tank and is one of the most advanced tanks in the world. It is armed with a 120mm rifled gun, a 7.62mm coaxial machine gun,
From Wikipedia
The FV4034 Challenger 2 is a third generation British main battle tank (MBT) in service with the armies of the United Kingdom, Oman, and Ukraine.