This ammo storage on the Leopard is the main point that is seen as a possible problem for the tank. The claim is that if the front of the hull is penetrated in reality the whole tank will go up in smoke. Reports and video evidence show that 10 leopard tanks were destroyed by ISIS soldiers in Syria during one combat engagement. So what happened here? It could be that the Turkish army lacked the correct training and experience in combined arms warfare to deploy infantry around the tanks proximity in order to protect their armored vehicles vulnerable sides. Some versions of the Leopard do not have explosive reactive armor which means the Russian ATGM Kornet with a 600mm penetration rating would easily break through the armor. The Leopard 2 features spaced multilayer armor that combines steel plates, elastic and non-metallic materials throughout. The front of the Leopard 2A4 has vertically faced turret armor that is approximately 31 inches thick or 780mm. It was estimated that these tanks can resist 125mm APFSDS rounds fired from about a mile away. The Leopard 2A5 and newer versions feature angled arrow-shaped turret applique armor that is 59 inches or 1500 mm thick. So over time the tank has evolved to be fitted with more and more heavy armor. But one of NATOs main advantages with their equipment remains their battlefield management computer systems which are unmatched by Russia. Russian forces have to rely on static filled radio transmissions and paper maps to plan operations.