I hadn’t thought about it before, but there are thousands of Russian Jihadis in Syria, and should they win, whey will come back to the Caucuse:

I find nothing sinister or difficult to understand in Russia’s increased involvement in Syria. In June, extremists declared the Dagestan Governorate of the Islamic State in Russia’s southernmost republic. Think about this for a sec. Russian jets started flying missions three months later.

This is a legitimate security issue for Russia, as things like Chechnya and Beslan show.

It doesn’t matter if  the fighters are fighting with ISIS, or al Nusra, or the Kurds, or the Turkomen.

If they win, they will be back in Gorzny and Moscow with their new friends.

For all the crap about “Fighting them there” that we have in the US, the Russians actually have a real problem with people bringing terrorism back.