Back in the 1980s, the US supported Afghan “freedom fighters” against the Soviet Union. Those fighters later morphed into the Taliban. And now, the Russians seem to be returning the favor.

Moscow said last month it was in contact with the Taliban insurgency in Afghanistan, with the stated reason being that Russia was sharing information and cooperating on strategy to fight the local ISIS affiliate there, according to The Wall Street Journal. So far, cooperation apparently doesn’t involve cash or guns.

But it understandably has US commanders there spooked.

Gen. John Nicholson, the top American military commander in Afghanistan, has spoken out against Russia’s extension of an olive branch to the Taliban as offering “overt” legitimacy to a group intent on toppling the Afghan government.

Russia’s “narrative goes something like this: that the Taliban are the ones fighting Islamic State, not the Afghan government,” Nicholson said at a Pentagon briefing last month. “So this public legitimacy that Russia lends to the Taliban is not based on fact, but is used as a way to essentially undermine the Afghan government and the NATO efforts and bolster the belligerents.”

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