Today, NATO Secretary General Jens Stoltenberg confirmed that Russia has violated Turkish airspace for a second time. On Saturday, a Russian plane crossed into Turkish airspace near the Syrian border, and in response the Turks scrambled two F-16s. In a subsequent incident, Ankara said that a MiG-29—flown either by Russia or its client Syria—locked its radar on to two more Turkish F-16s Sunday as they patrolled the border.

Russia’s actions against NATO member Turkey, says the Obama administration, are worrisome. “We’re very concerned about it,” said John Kerry, “and it is precisely the kind of thing we warned about.” The Russians say it’s a mistake, but that’s nonsense. Russian Prime Minister Vladimir Putin is simply telling everyone he’s the new sheriff in town.