US gains wanted territory, we become intamately intertwined with Mexico, and the Slave Territory increased(positive for the south at the time, until the Civil War.)
The all volunteer military.
The U.S. gained more land as a result of the Mexican-American War. All of the land that is between California to Texas was cedes by the Mexicans.
Answer if you haven't want to the war you have to go to war to
i
Sergeant Leigh Ann Hester and Deborah Samson are some of the women who served during the Mexican war.
Possible positive outcomes of a war could include the restoration of peace and stability, the overthrow of oppressive regimes, and the promotion of democracy and human rights. Additionally, wars can sometimes lead to technological advancements and economic growth as nations mobilize resources for the conflict.
Some of Adolf Hitler's actions had positive outcomes such as his commissioning of the autobahn to create jobs and the commissioning of the Volkswagen to make cars accessible. However his major actions, such as persecuting the Jews and leading Germany into war, had negative consequences that affected Germany for years.
Mexican War
Mexico never had states. And I am sure there were some Mexicans supporting U.S.A during the war.
The Mexican-American War was not unnecessary.
The Mexican cession was the outcome of the Mexican American war.
The Mexican War resulted in the Mexican Cession and the Treaty of Guadalupe Hidalgo ended the Mexican War.