Within hours of the horrific attack by Hamas, the U.S. began moving warships and aircraft to the region to be ready to provide Israel with whatever it needs to respond.

A second U.S. carrier strike group departs from Norfolk, Virginia, on Friday. Scores of aircraft are heading to U.S. military bases around the Middle East. And special operations forces are now assisting Israel’s military in planning and intelligence.

The buildup reflects U.S. concern that the deadly fighting between Hamas and Israel could escalate into a more dangerous regional conflict. So the primary mission for those ships and warplanes for now is to establish a force presence that deters Hezbollah, Iran or others from taking advantage of the situation. But the forces the U.S. sent are capable of more than that.