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.
Ukraine's new tanks are seen in action as counteroffensive gets underway - The Japan Times
Ukraine only lost 5 out of 71 Leopard 2 tanks during summer in counteroffensive – Forbes
American Abrams tanks vulnerable even to Soviet-era weapons, says expert - Military & Defense - TASS
UK considers supplying handful of Challenger 2 tanks to Ukraine, Ukraine, tank 2
Swiss say Germany can freely dispose of Leopard 2 tanks sold back to Rheinmetall, tank 2
Ukraine Modifying UK Challenger 2 Battle Tanks Due to Weak Spot: Report, tank 2
Swiss say Germany can freely dispose of Leopard 2 tanks sold back to Rheinmetall, tank 2
British Challenger 2 tank destroyed in combat for first time
The Challenger 2 Tank Already Has a Lot of Armor. The Ukrainians Added More.
WHY THE BRITISH ARMY NEEDS TO ADOPT A TWO DIVISION MODEL – UK Land Power
Russia's Ill-Fated Invasion of Ukraine: Lessons in Modern Warfare