From 1983 to 2001 the Challenger 1 Main Battle Tank took over from the Chieftain as the core of the British Armoured Forces.
Constantly plague by reliability issues, mainly due to breakdowns. the problem was underlined when the tank performed poorly in the first Gulf War, though those that did enter combat proved to be excellent against the Russian armour they faced.
At least 30 have been donated to te Ukraine and are reported to have been in action since 2022.