If countries don't buy as much land from other countries, there won't be as much disagreement over who should own what land. Countries could share the land to help prevent the war. When countries form alliances, more people will get involved in the war. Other countries that don't have alliances are angry at the countries that do.
The National Magazine Youth's Companion
There would be less slavery and the south would lose the civil war
The American Revolution influenced political ideals and revolutions across the globe.