During the American Revolutionary War a naval fighter named John Paul Jones (aka the father of the U.S. Navy) set sail for France "with orders to assist the American cause however possible". King Louis XVI was gracious enough to place an old merchant ship at the disposal of John Paul Jones who then outfitted the older vessel and called it the Bonhomme Richard.
In 1779 the Bonhomme Richard with four other ships set off for Ireland to provide a diversion for a large French and Spanish naval fleet approaching England. The British Royal Navy chased after the small squadron of ships, but the Bonhomme Richard was able to sail around Scotland and into the North Sea. The Royal Navy eventually caught up with the squadron off the coast of Flamborough Head and was excited to engage its brand new warship, the H.M.S. Serapis, into battle.
The Serapis being faster and having more guns than the Bonhomme Richard quickly out powered the older vessel. After two cannons on the Bonhomme Richard burst, killing several crew members, the British captain laughed and asked if they would like to surrender. John Paul Jones famously replied, "Sir, I have not yet begun to fight" and continued to attack eventually overtaking the Serapis and winning the Battle of Flamborough Head (he actually latched his ship onto the Serapis stopping its maneuvering and fatal shooting). Unfortunately, the Bonhomme Richard was severely damaged in the battle and sunk off the coast of England.
The possibility of finding the shipwreck would be great for France and the United States, but . . . it's a pretty old ship that's been buried at the bottom of the North Sea for a couple hundred years. Several different teams have searched for this shipwreck for a number of years without any luck. Each year they make progress, but I think the real progress is the enduring relationship between these two countries (on the ships and in port calls, no better way to bond than over a beer).
As a side note, all of this shipwreck talk has made me really want to watch this terrible movie:

