Although not officially confirmed, the apparent destruction of a Ukrainian Challenger 2 is the first ever loss during combat operations.
Ukraine is getting its first heavy tanks from the West. Russia says they 'will burn like the rest
Ukraine war leaves British Army 'very uncomfortable' with Future Soldier capabilities - Breaking Defense
Challenger 2 - Main Battle Tank
UK Challenger Tanks Destroy Russia's Concrete Positions With Ease: Ukraine Crew
Arms deliveries to Ukraine: crossing the red lines
What makes Germany's Leopard 2 tank the best fit for Ukraine?
UK supplied Ukraine with 'thousands of shells for Challenger-2 tanks
Russia pulls mothballed Cold War-era tanks out of deep storage as Ukraine war grinds on - CBS News
Why Ukraine believes tanks can turn the tide of war – POLITICO
Challenger 2 - Ukraine Main Battle Tank (MBT) Modernization
Captured, undamaged Challenger 2, shown on Moscow's Red Square
What Ukraine — or Russia — must do to win – POLITICO