Russian fighter jets flew too close for U.S. officials' comfort to the USS Donald Cook this week
A U.S. official described the Russian maneuver as "strafing runs" without firing any weapons.
Unarmed Russian fighter jets made two extremely close overflights this week of the USS Donald Cook, sailing in the Baltic Sea.

The Cook "encountered multiple, aggressive flight maneuvers by Russian aircraft that were performed within close proximity of the ship," according to a statement by European Command.
"We have deep concerns about the unsafe and unprofessional Russian flight maneuvers," the statement said.
One of the Russian jets flew within 75 feet of the Cook's ship superstructure.
The initial reports indicated the two concerning encounters occurred Tuesday night in international waters. A third overflight, at a more acceptable distance, happened Sunday, according to a U.S. official.
The ship, an Arleigh Burke-class guided-missile destroyer, also had a Polish helicopter on board as part of routine training, according to the official, leading to some speculation in military circles that the Russians were also "sending a message to Poland," the official said.
A U.S. official described the Russian maneuver as "strafing runs" without firing any weapons. The unarmed Russian aircraft swooped in over the deck in the same flight profile that would have been used if an attack was underway.
A second U.S. defense official told CNN that the overflights were conducted by a Russian SU-24 and helicopter. Flight operations by the Polish helicopter were interrupted because one of the overflights was so close.
The Cook had been shadowed by a Russian intelligence-gathering ship for some time before the aircraft encounter. The U.S. crew had radioed the Russian ship that it was conducting routine operations, according to the official.