Operation Euphrates Shield is launched with Turkish armor, American air power and Syrian rebels attacking and seising the ISIS supply node in the vicinity of Jarabulus. The Economist has Turkish airpower and special operations troops engaged while the Wall Street Journal doesn’t mention them. It’s not unreasonable that Turkish special operations were embedded with the rebels or that they coordinated the air piece even if it’s unclear. BBC has it at “between nine and 12” tanks involved but even a company(-) of tanks is a decent chunk of combat power in a local light infantry fight.
This is distinctly bad news for ISIS. The longer term implications in the chaotic situation between interests operating in Syria are a lot less clear. The three links provide some good discussion of those implications.
If anyone else feels the compulsive need to identify armor I experience, I’m calling it one of the American built M60A1s or M60A3s Turkey still operates.