Chechen Islamists are fighting with IS, Chechen Islamists are fighting in the Ukraine for Russia and now both the IS and Russian troops share the same battle fatigues---connection?

Islamic State fighters and Novorossiya rebels must be shopping at the same military fashion outlet:pic.twitter.com/uu5KK43Z8p

[B]From #ISIS to Donbass #Ukraine, #Russia'n mil gear Gorka is trending among the terrorists. /B]
pic.twitter.com/4OGYdaWhvz

UKR MP @DmitryTymchuk reports 2 Chechnya's Internal Affairs men caught during intense fighting at Donetsk airport https://www.facebook.com/dmitry.tymc...21674831294509 …

Who can explain sign on Kadyrov's chest? Resembles IS emblem. Used in other context too?
pic.twitter.com/yBJmtDaKEb”