Britain awards $1 billion contract to upgrade Challenger 2 tanks

Anglo-German armored vehicle-maker Rheinmetall BAE Systems Land has signed a deal with the British Defence Ministry to upgrade Challenger 2 main battle tanks.

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British Army cut above at ceremony marking upgrade of Challenger 2

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Work begins to prepare Challenger 2 vehicles for upgrade programme

Challenger 2 - Wikipedia

Britain awards $1 billion contract to upgrade Challenger 2 tanks

Challenger 2 - Smartencyclopedia

Challenger 2 - Smartencyclopedia