The whir of the helicopter drowned out every other noise around Caleb, even his own thoughts. It was a welcome respite. An intricate web of tactical planning had filled the recesses of his mind for the past 24 hours, but it was time. No more planning. It was another routine operation; go in, grab the bad guys and get out. He knew each move he was about to make, and every single step the seven men sitting next to him would take. He was sure of it; it was his job. He was responsible for the safety and well-being of every man in his squad, and simultaneously, for the success of the mission at hand.