The armour on five of Iraq’s M1A1 Abrams tanks was penetrated by anti-tank guided missiles (ATGMs) and six helicopters were shot down between 1 January and the end of May,¬†The New York Times¬†quoted an unnamed US official as saying on 13 June.

The official said 28 Iraqi Army Abrams had been damaged in fighting with militants, five of them suffering full armour penetration when hit by ATGMs. The United States supplied 140 refurbished M1A1 Abrams tanks to Iraq between 2010 and 2012. While they have new equipment to improve situational awareness, they do not have the depleted uranium amour package that increases protection over the tank’s frontal arc.

The penetration of a tank’s armour by a shaped-charge warhead increases the likelihood of crew casualties, but does not necessarily result in the destruction of the vehicle, especially if it has a dedicated ammunition compartment, as in the case of the Abrams. […]