The Associated Press reports: Militant leaders from the Islamic State group and al-Qaida gathered at a farm house in northern Syria last week and agreed on a plan to stop fighting each other and work together against their opponents, a high-level Syrian opposition official and a rebel commander have told The Associated Press.

Such an accord could present new difficulties for Washington’s strategy against the IS group. While warplanes from a U.S.-led coalition strike militants from the air, the Obama administration has counted on arming “moderate” rebel factions to push them back on the ground. Those rebels, already considered relatively weak and disorganized, would face far stronger opposition if the two heavy-hitting militant groups now are working together. [Continue reading…]