That's a problem, because law enforcement officers need the cooperation of the communities they patrol in order to do their jobs effectively. In the early stages of the war, the U.S. military overlooked that reality as well. Leaders defined success as increasing military hold on geographic terrain, while the human terrain was the real battle. For example, when our platoon entered Iraq's volatile Diyala province in early 2007, children at a school plugged their ears just before an IED exploded beneath one of our vehicles. The kids knew what was coming, but they saw no reason to warn us. Instead, they watched us drive right into the ambush. One of our men died, and in the subsequent crossfire, several insurgents and children were killed. We saw Iraqis cheering and dancing at the blast crater as we left the area hours later.