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
spanish America i think
Various skirmishes during the Indian Wars.
pacificism
The War of 1812 and the War for Texas Independence.
He was the general of the North. Yes he did
Did the Judge fight any wars
Presidents can fight in wars, but they can't fight while in office.
i am sorry to tell you that paul revere did not fight in wars
The Persian Wars
the north won they let free all slaves from the south, and now African Americans can fight in wars
Wars.
Peole learn how to fight by being trained in fighting, not by watching wars.
Yes they can
You fight in our wars
no he did not
yes