Although the Iraqis used a correct defensive tactic by deploying their armor behind the ridge, this was not properly repeated through the rest of the war. In one incident, an Iraqi commander attempted to repeat what had been done at Medina but mistakenly deployed his armor too far from the ridgeline. This gave the American units the upper hand, as the Abrams tanks specialize in long-distance kills; their Chobham armor is extremely resistant to long-range fire. The American height advantage also reduced the effective range of the Iraqi tanks and presented the Iraqi gunners with a targeting situation for which they were under-trained.