A second Democratic campaign has been caught mistaking a foreign ship for a U.S. Navy vessel in images meant to brag on the candidate’s devotion to the military.

A month after the Democratic National Convention featured Cold War-era Soviet ships on a giant screen as a former Navy admiral representing the Obama campaign praised American veterans, the Democrat running for Senate in Connecticut featured a foreign sub in a television ad promoting his efforts to create jobs at the state’s sub-maker, General Dynamics’ Electric Boat of Groton.