Despite isolationist resistance, Roosevelt pushed cautiously forward. In late August the Navy added British and Allied ships to its Icelandic convoys. Its orders were to shoot German and Italian warships on sight, making the U.S. an undeclared participant in the Battle of the Atlantic.
in the Atlantic ocean.
US merchant vessels trying to ferry supplies to Britain across the Atlantic Ocean, and Germany's submarines trying to sink them before they reached their distination. That was the "Battle of the Atlantic."
Dictionary: Do battle; battle or struggle; oppose; collide; etc. The American Civil War (US Civil War) was also an undeclared war. Some folks like to forget that when saying an "undeclared war" is only a conflict. The Second World War was Americas last declared (formal) war.
Us and the Japanese.
The North won and the South lost in both undeclared wars; US Civil War & Vietnam.
The US Civil War (American Civil War) was an undeclared war and had many naval battles; are you asking about that war?
France
The Battle of the Atlantic
France :3
Mostly in the southern states during the Civil War.
pasha of tripoli
US Civil War & Vietnam War are two examples.