Defense Secretary Donald Rumsfeld is summoning combatant commanders to Washington later this month to discuss how to fully resource operational plans for the war on terror. The U.S. military brass are also expected to address a growing effort to give leaders of operational forces greater say in the shape of the Pentagon's long-term investment plans, according to defense sources. Military leaders responsible for U.S. operations around the world will hunker down from May 22 to May 24 with the Pentagon's...