Eclov, 2013, с. 223-224: "British and American warships shared coded signals to identify each other as friendly, sailed in concert, and sometimes chased the enemy together. The commanders often entertained their opposite numbers aboard their ships, and shared intelligence on enemy strength, and disposition. Without compunction, they convoyed the other nation's merchantmen. The British governors allowed American men of war to use their islands as bases of operations and to board prisoners of war captured in theatre.". Eclov, Jon Paul (2013). Informal Alliance: Royal Navy And U.S. Navy Co-Operation Against Republican France During The Quasi-War And Wars of the French Revolution (PhD). University of North Dakota.