First Chechen war, civilian casualties on Chechen side -
50,000–100,000 Killed
80,000 (Human rights groups estimate)
Second Chechen war, civilian casualties -
Estimate up to 25,000 killed and up to 5,000 "disappeared" in Chechnya (AI estimate),
Estimate 50,000 killed in Chechnya (GfbV estimate),
More in neighbouring regions.
I can't blame them for seeking help wherever they can.