Martin Izaguirre Salgado keeps a souvenir from his time working on a liquid petroleum gas tanker that came under fire in the Red Sea.

An Iranian ship had been invited by India to take part in peacetime naval exercises with dozens of other countries, days before it was sunk in a U.S. submarine attack.

Few modern American warships have drawn as much criticism as the Littoral Combat Ships. Conceived after 2001 as small, fast, shallow water vessels meant to counter threats near coastlines, they were ...