This lesson will provide students with an understanding of the pivotal causes and major events that prompted the Mexican-American War, which took place between 1846 and 1848. Students will explore the political, social, and economic tensions between the United States and Mexico, including the annexation of Texas, Manifest Destiny, and border disputes, leading to the conflict. This foundational knowledge will help students comprehend the broader impacts of the war on both nations and the course of American history.