The DNC in order to honor American soldiers at the convention use Russian ships in the backdrop.
Navy Times Mobile - Russian ships displayed at DNC tribute to vets
The background — featured in the carefully choreographed hour leading up to the president’s Sept. 6 speech accepting the Democratic Party’s nomination — showed four ships with radar designs not used in the U.S. fleet.
For example, the ship in the foreground, on the far right, has a square radar antenna at the top of its masthead. That is the MR-700 Podberezovik 3-D early warning radar, commonly identified as “Flat Screen” for its appearance, a three-dimensional early warning radar mounted on the Kerch, said Eric Wertheim, editor of “Combat Fleets of the World.”
Do they even check things or did some idiot just google naval ships and thought these looked cool and didn't care what country they were from ?