The add-on armor, on the lower front of the 69-ton, four-person—the “glacis”—clearly is meant to protect one of the tank’s notorious weak spots.
Challenger 2 - Wikipedia
Putin warns UK over depleted uranium tank shells for Ukraine, Nuclear Weapons News
UK Planning to Avoid Challenger Tank From Falling Into Russian Hands
Challenger 2: The heavy duty British tank being used by Ukraine
Paratroopers publish footage of Challenger 2 MBT in use – Ukraine war / The New Voice of Ukraine
Britain says it will give Ukraine tanks, breaching a Western restriction - The Japan Times
UK hands over all the promised Challenger 2 tanks to Ukraine - Militarnyi
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Paratroopers show Challenger 2 tank in action for the first time