Chechen militants emerging from the forests as winter ends - both IS-linked cadres, and small unknown groups
http://www.kavkazr.com/a/v-lesakh-ch...28401895.html#

Chechnya has seen 4 major militant attacks in last 4 months - marked shift from prevailing calm in 2015 - late 2016
http://www.kavkazr.com/a/v-chechne-n...28400863.html#