peace is their in Uganda because the wars that has been inthe northern part of it have now ended.

Rome staying out of northern Spain and not trying to exert its influence there.

Spanish became involved in the Italian wars when the Northern Italian states turned for help to the Spanish, who gladly agreed to send soldiers to Italy.

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 Northern armies from both the US Civil War & Vietnam Wars drafted their men.