WW1, WW2, Korea, Viet Nam, Grenada, Desert Storm etc.
The United States has fought in numerous wars and police actions during its 236+ Year History. The four wars above are only a sampling of those wars in which the United States was involved.
2
no
The revolution and indian wars
Did the Judge fight any wars
he needed money to fight wars in Europe.
Afghanistan and Vietnam
Afghanistan and Vietnam
Presidents can fight in wars, but they can't fight while in office.
Fight wars without the use of nuclear weapons; limited wars.
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.
The Mexican American War and the US Civil War.
Only one, the Mexican-American War (1846 - 1848).