A video appears to show a British-built Challenger 2 tank in Ukraine with an extra piece of armor added to protect a weak spot.
Classic Chieftain Cold War British Main Battle Tank Possibly En-Route to Ukraine – Report
Challenger 2 - Wikipedia
UK Challenger Tanks Destroy Russia's Concrete Positions With Ease: Ukraine Crew
Speed, number of tanks supplied is vital to Ukraine, Zelenskyy insists – Euractiv
Ukraine war: UK dismisses Putin 'disinformation' over depleted uranium tank ammunition
Classified Challenger tank specs leaked online for videogame
Russians Call Ukraine's Ex-British Challenger 2 Tanks 'Huge and Loud
Russia's Ill-Fated Invasion of Ukraine: Lessons in Modern Warfare
German and U.S. Tanks Will Be Critical in Ukraine's Next Phase Against Russia
U.K. and Allies Weigh Sending Ukraine Heavy Tanks, Pointing to New Phase of the War - WSJ
Ukraine's new tanks are seen in action as counteroffensive gets underway - The Japan Times
Human Flesh, It Cannot Survive': Russian Infantry 'No Match For Western Weapons,' British Analyst Says
Russia likely lost dozens of armoured vehicles near Ukraine's Vuhledar: UK
What makes Germany's Leopard 2 tank the best fit for Ukraine?
Allies keep close watch on British plans to reshape armed forces