What was the worst war America has ever fought in?
the civil war. the reason for that is because that was the one war that we lost the most people. also we had to fight ourselves. so with out a doubt it was the civil war. sorry to say so.
World War I was the first "world war," however, it was not the first war ever fought. ^ While the above answer is correct I think that what your teacher is looking for is the French and Indian War which was fought in America it is technically the first world war since it was fought in North America, Europe and Asia North America - French and Indian War Europe - the Seven Year War Asia…
It may be possible that some junior member of the house of Hohenzollern fought in such a war, but no prince of Prussia who later became king of Prussia ever fought in a war with America. Only the emperor Wilhelm II was involved in a war against, among others, the US; but that was WW I and he was already king of Prussia and German emperor at the time.
if you mean "Where was the worst battle of ww1 fought?2 it was the battle of the Somme and it was between July 1916 and November 1916 and was fought by the French and British against the Germans, just under 1 year later the Americans joined the war for the final year of the war. the location is Somme, Picardy, France.
The US fought Germany and Japan in WWII. The US fought North Korea and Red China in the Korean War. The US fought Mexico in the Mexican War of 1846. The US fought Great Britain in the War of 1812. The US fought Spain in the Spanish-American War of 1898. The US fought Germany in WWI. The US fought North Vietnam during the Vietnam War. Is America at war with the nation of Iraq?