This is why the Challenger 2 needs - Tanks. Being tanks.

First Look at Challenger 3 Tank Prototype Revealed in Photos - Militarnyi

UK Challenger Tanks Destroy Russia's Concrete Positions With Ease: Ukraine Crew

Challenger 3 - Wikipedia

Even More Than Tanks and Planes, Ukraine Needs IFVs

UK agrees to send Challenger 2 tanks to Ukraine – POLITICO

The Challenger 2 Tank Already Has a Lot of Armor. The Ukrainians Added More.

Western Tanks Appear Headed to Ukraine, Breaking Another Taboo - The New York Times

Britain's Challenger 2 Tank Is One of the Best—but It Needs Some Serious Help

This is why the Challenger 2 needs - Tanks. Being tanks.