The Pentagon has warned President Trump that military plans to strike Iran carry serious risks, cautioning that an extended campaign could cause heavy U.S. and allied casualties, deplete critical air-defense munitions, and strain U.S. forces. General Dan Caine and other senior leaders have pressed those concerns in internal meetings, noting that options range from limited strikes to a prolonged aerial campaign that might prompt broad Iranian retaliation against U.S. troops, regional bases and allies. Officials say allies are hesitant to provide basing, evacuations and bolstered defenses are underway, and Mr. Trump has not yet decided on action, according to officials. (wsj.com)