In [this video][1] Apti Alautdiniv, the Akhmat batallion commander from Chechnya calls his unit "army of Jesus" and the soldiers are seen to carry flags with icon of Jesus Christ.

I wonder whether this behavior is in line with Islam? Are there any historical precedents of similar behavior of Muslims?


  [1]: https://youtu.be/wEEBfz_EFYQ?t=1046