Go home, Tillerson tells Iranian-backed militias in Iraq

By Stephen Kalin and Jonathan Landay RIYADH/DOHA (Reuters) - U.S. Secretary of State Rex Tillerson said on Sunday it was time for Iranian-backed militias and their Iranian advisers who helped Iraq defeat Islamic State to "go home", after a rare joint meeting with the leaders of Iraq and Saudi Arabia. The United States is concerned that Iran, a Shi'ite regional power, will take advantage of gains against IS in Iraq and Syria to expand the influence it gained after the U.S. invasion in 2003, something Sunni Arab rivals such as Riyadh also oppose.