British army also takes part in strikes on Kataib Hezbollah weapons facility day after missiles fired at base kill 3 troops

'You don't get to shoot at our bases and kill and wound Americans and get away with it,' says Defense Secretary Mark Esper

US to draw forces down to 8,600 from 13,000 with remaining troops withdrawing in 14 months, threatens to 'nullify deal if commitments not held

News comes as Pompeo, Esper meet with Afghanistan's president Ashraf Ghani; could lead to withdrawals of American troops

US president had justified strike on top Iranian general by saying intelligence showed Tehran had four potential attacks lined up on US missions

Defense Secretary Esper says street demonstrations in Tehran show Iranian people want 'better government — a different regime,' but denies that is Washington's policy

Gen. Milley says early warnings enabled troops to take cover preventing casualties; Pentagon chief says US has reestablished deterrence toward Iran

With troops now focused on defending themselves and American interests in region, they have been diverted from their mission to put an end to jihadist terror group

US president says initial outlook after Iranian strikes on Iraqi bases housing US troops was, 'So far, so good!'

White House and Pentagon deny intention to withdraw forces as Iraq premier says he's received mystery US letter signalling pullout