Although not officially confirmed, the apparent destruction of a Ukrainian Challenger 2 is the first ever loss during combat operations.
Russia likely lost dozens of armoured vehicles near Ukraine's Vuhledar: UK
News & Features - Defence Leaders 2023
Russian forces destroy first British-supplied Challenger 2 tank in Ukraine, official says - World - Business Recorder
M1 Abrams, Leopard 2, Challenger 2: These are the tanks Ukraine will get from the U.S. and Europe - CBS News
Ukraine Modifying UK Challenger 2 Battle Tanks Due to Weak Spot
Ukraine vows triumph over Russian 'darkness' on war anniversary
How Western Tanks in Ukraine Compare to Russia's Battalions
Ukraine Modifying UK Challenger 2 Battle Tanks Due to Weak Spot
Why Ukraine wants Leopard 2 tanks : NPR
bne IntelliNews - West fails to deliver tanks to Ukraine due to resurgent reluctance and logistics
Western Tanks for Ukraine: Master Stroke or Colossal Blunder?
How are Ukraine's challenger tanks performing? Have they seen combat yet? - Quora
Analysis of Land Army Maintenance Techniques in the War in Ukraine
Ukraine loses its first 'invincible' British-made Challenger 2 tank as video shows burning wreck on roadside