The Little Ships — J.A. Sutherland

Newly commissioned lieutenant, Alexis Carew is appointed into HMS Shrewsbury, a 74-gun ship of the line in New London's space navy. She expects Shrewsbury will be sent into action in the war against Hanover, but instead she finds that she and her new ship are pivotal in a Foreign Office plot to bring the star systems of the French Republic into the war and end the threat of Hanover forever.