By Phil Stewart WASHINGTON, June 7 (Reuters) - Fourteen weeks after President Donald Trump ordered an attack on Iran, the U.S. military is adjusting to an unusual state of conflict that is not full-scale war, but also far from peace. On ships and bases in the Middle East, U.S. troops — some recovering from injuries — operate amid exchanges of fire with Iran every few days as the Navy blockades Iran's ports. At home, the Pentagon is scrambling to bolster production of depleted munitions as families of service members cope with the stress of extended deployments.