This report is from April 2014, but it tells of the friends in strange places they got. Carrot top (below) is recruited to ISIS commander of North Syria, a move from al Qaeda. They have jumped ships from Chechen Jaish al-Muhajideen wal Ansar (JMA) (Army of Emigrants and Helpers) to al Qaeda and now to ISIS.
Chechen al Qaeda Commander Spotted on Front Lines in Latakia
A prominent Saudi cleric and a Chechen military commander in a unit of the Al Nusrah Front for the People in the Levant, al Qaeda’s official branch in Syria, celebrated together after recent heavy fighting against Syrian government forces in a mountainous area in the coastal province of Latakia. The leader of Ahrar al Sham is also seen in the video.