US defense secretary's claim follows an attempt by an Tehran-sponsored Iraqi militia to break into the US embassy in Baghdad

As the Iran-backed Hashed al-Shaabi force exerts its will on Baghdad government and controls events on the ground, country risks further isolation from US and the rest of the world

'We burned them!' shout demonstrators as they stream out of the high-security Green Zone

Kataeb Hezbollah commander insists group will stay put outside Baghdad mission after powerful Hashed al-Shaabi paramilitary force tells supporters to retreat

Pro-Iran demonstrators set fires and scribble anti-American graffiti in response to airstrikes that killed 25 fighters over the weekend

US send hundreds more troops to region; US president says Tehran directly responsible for protesters storming US Embassy compound in Iraq and says they will be held accountable

Pentagon chief announces deployment of extra troops to guard diplomatic facility that came under attack by pro-Iran protesters

US president tells Iraqis they should use force to secure complex, where angry protesters broke through the outer wall and burned property following US airstrike on local militia

With cries of 'Death to America, death to Israel,' protesters vent their anger over US attacks on Kataeb Hezbollah group, seen as violation of Iraqi sovereignty

Ousted PM Abdel Mahdi says attacks 'force Iraq to review its relations' with Washington; protesters burn US flags