There's only been two world wars in the history of man.
2
How many? You think there has been MORE than two world wars? And in both cases, the US was involved. Honestly, some people.
The United States has fought in World War One and World War Two, the only two world wars so far.
balls
According to Wikipedia, 116,708.
These wars are known as World Wars because many countries of the world fought in the war
I have heard that there were sightings during both world wars, there could be more but those are the ones that I know about.
If you mean the northern states, they fought in the Civil War. Other than that one time, the US has always been united. Any wars which involved the north, involved the entire US. The US has, of course, fought in two world wars and many other wars.
No, the United States has not been in three world wars.
Only two wars to date are known as world wars.
Dwight Eisenhower was the only US president to serve in the army in both world wars.
World War 1 and World War 2 were the last declared wars that the US participated in.I'm sure however that there have been small regional warsafter World War 2, that the US did not participate in that were declared wars by the regional participants in those wars.