Which of the following was a result of the Mexican-American war in the United States Territory known as Mexican concession it increased unity among America by giving them common enemy

The result of the Mexican-American war that increased unity among Americans by giving them a common enemy was the acquisition of new territories from Mexico. Specifically, the Treaty of Guadalupe Hidalgo, signed in 1848, ended the war and resulted in the Mexican Cession. This vast territory, comprising present-day California, Nevada, Utah, Arizona, New Mexico, and parts of Colorado and Wyoming, fueled American expansionism and led to increased unity among Americans as they now had a shared land and interest in its development.