The Islamic State warns Shabaab that it will respond to the group’s campaign targeting Abu Bakr al Baghdadi’s loyalists in Somalia. Shabaab has been executing and arresting defectors who join the Islamic State since 2015. But the al Qaeda branch has stepped up its anti-Islamic State operations again in recent weeks.

Abdul Hakim al Tatari, a Russian Tatar member of the former Islamic Movement of Uzbekistan, joined the Islamic State’s Wilayat Khurasan before migrating to Syria. He was later killed in the battles around Baiji, Iraq, just days after arriving to Islamic State-held territory.
