Paul Scharre,
War on the RocksFrom Chinese expansion in the South China Sea, to Russian aggression in the Ukraine, to Iranian activities across the Middle East, many of the U.S. military's toughest challenges today are not âÂÂwarâ as we traditionally define it. They aren't peace either. They lie in a âÂÂgray zone,â as many have called these situations, somewhere in between.
