Summary and Key Points: Challenger 3 is a technically serious upgrade—new turret, modern digital fire control, improved sights and networking, and a NATO-standard 120mm smoothbore gun that finally ...

Key Points - The United Kingdom is upgrading 148 Challenger 2 tanks to the new Challenger 3 standard, with full operational capability expected by 2030 at a per-unit cost of roughly $7.9 million.