Abu Omar al-Shishani
Tarkhan Tayumurazovich Batirashvili ( ; 11 January 1986 – 10 July 2016 ) , known by his "nom de guerre" Abu Omar al-Shishani or Omar al-Shishani , was a Georgian Chechen jihadist who served as a commander for the Islamic State of Iraq and Syria , and was previously as a sergeant in the Georgian Army . 
<triplet> Abu Omar al-Shishani <subj> Islamic State of Iraq and Syria <obj> allegiance