Official American accounts marked the service’s 250th birthday by showcasing foreign vessels The 250th anniversary of the United States Navy has been marred by a series of online gaffes after officials and organizations mistakenly posted images of warships belonging to other nations, including Russia.  The Navy SEAL Museum in San Diego and Arizona Secretary of State Adrian Fontes were among those to share the mistaken tributes to mark the anniversary on Monday. Some of the posts, which remained