“Jaish al Muhajireen wal Ansar (JMWA, or ‘the Army of the Emigrants and Helpers’) has sworn allegiance to the Al Nusrah Front, an official branch of al Qaeda. The move is hardly surprising, as JMWA, which is comprised mainly of foreign fighters, has long fought alongside Al Nusrah and other al Qaeda-linked organizations in Syria. JMWA’s bayat (oath of allegiance) was released via the group’s official Twitter feed. Al Nusrah tweeted the statement, which can be seen below, later in the day as well.”
Source: Foreign fighter group officially joins Al Nusrah Front | The Long War Journal