Russia is testing the U.S. in Syria, a top American commander said Wednesday, days after American troops blocked Russian forces from reaching an oil field.

Speaking to reporters at the Pentagon, Air Force Maj. Gen. Alex Grynkewich, deputy commander of Combined Joint Task Force-Operation Inherent Resolve, said the U.S. and Russia have “different engagements” on the ground and warned Russian forces not to take provocative action.

His comments came in the wake of an incident over the weekend where U.S. soldiers stopped a Russian military patrol en route to an oil field near the town of Rumaila in Hasakah

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