ALLIES: Turkey threatens military action against U.S.-allied Syrian Kurdish fighters.

The warning was delivered to senior U.S. national security officials in closed-door meetings this week after the Trump administration expressed its intent to arm the Kurds following months of deliberations, the Turkish officials said.

“Turkey’s message to the Trump administration was that Turkey reserves the right to take military action,” said a senior Turkish official who spoke on the condition of anonymity because of the sensitivity of the matter.

Turkey has already conducted limited strikes against the U.S.-backed Kurdish fighters in northern Syria in recent weeks, but it could increase the tempo of those strikes, Turkish officials said. American officials have complained bitterly to Turkey, a NATO ally, about the airstrikes, which have targeted the principal U.S. partner in Syria in the fight against the Islamic State.

Sure would be nice if our treaty allies acted like our actual allies.