Pressure is mounting on U.S. President Joe Biden to attack Iran directly after three U.S. troops were killed and more than 30 others injured in a drone attack on an American outpost in northeastern Jordan. While hitting Iranian targets is an option, analysts say the U.S. is more likely to strike one or more of Iranian-supported proxy groups based in Iraq and Syria -- but acknowledge it is increasingly difficult for Washington to sidestep direct confrontation with Tehran.Biden has been reluctant to directly strike Iran, fearing it may plunge the…
