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.
A major union military victory
Abraham Lincoln really wanted the people to unite together as one, so he wanted the union to come together in success by victory.
One positive is it helped the countries against communism by supplying them with weapons. A negative is that the countries against it could have been impostures and used the weapons we gave them against us
