Although not officially confirmed, the apparent destruction of a Ukrainian Challenger 2 is the first ever loss during combat operations.
UK to send controversial 'depleted uranium' rounds to Ukraine
Ukraine war leaves British Army 'very uncomfortable' with Future Soldier capabilities - Breaking Defense
Analysis of Land Army Maintenance Techniques in the War in Ukraine
Tanks a Lot (Well, Actually Not That Many for Ukraine) - Foreign Policy Research Institute
What does loss of Ukraine's Challenger 2 tank mean?
Waiting for Western tanks, Ukrainian soldiers train rapidly in order to go 'straight into battle
UK to send heavy battle tanks to Ukraine, Russia-Ukraine war News
Ukraine loses its first 'invincible' British-made Challenger 2 tank as video shows burning wreck on roadside
Western Tanks for Ukraine: Master Stroke or Colossal Blunder?