From a diminished US influence in the Mideast to an emboldened Iran and unnerved Gulf Arabs, Washington still grapples with forces unleashed by its invasion on Iraq 20 years on, current and former officials say. #News #Reuters #newsfeed #world #UnitedStates #Iraq #invasion #MiddleEast #anniversary #Iran Subscribe: http://smarturl.it/reuterssubscribe Reuters brings you the latest business, finance and breaking news video from around the globe. Our reputation for accuracy and impartiality is unparalleled. Get the latest news on: https://www.reuters.com/ Follow Reuters on Facebook: https://www.facebook.com/Reuters Follow Reuters on Twitter: https://twitter.com/Reuters Follow Reuters on Instagram: https://www.instagram.com/reuters/?hl=en