The Washington Post reports: U.S.-backed forces in Syria announced a fresh offensive around the Islamic State’s most important remaining stronghold Saturday, accelerating a global scramble for control of the country’s oil-rich east.

Islamic State militants are under pressure from all sides in the border province of Deir al-Zour, facing down competing offensives involving almost all of the six-year war’s major players, as the extremist group’s self-declared caliphate crumbles across Syria and Iraq.

The Syrian Democratic Forces, a Kurdish-dominated militia supported by U.S.-led coalition airstrikes, said Saturday that they would clear the Islamist militants from territory east of the Euphrates River. [Continue reading…]