"2" . "Titan" . "Challenger 2 Life Extension Project (LEP)" . . . . . . "Challenger" . . . . "Challenger 2 Tank" . . . "Challenger armoured recovery vehicle" . . "Challenger 2" . . "2.49" . . "Trojan" . . . . . . . "Challenger 2" . "Challenger 2 (408)" . . "Challenger II Life Extension Programme" . "Challenger II" . . "FV4034 Challenger 2" . . "A similar incident had happened" . "Challenger Armament program" . "Life Extension Programme (LEP)" . . . . . . "Challenger Armoured Repair and Recovery Vehicle (CRARRV)" . . "Challenger Armoured Repair and Recovery Vehicle" . "Armoured" . . . . . . "Challenger 2#CRARRV" . "Challenger tanks" . "Challenger 2E" . . .