AP US History
America gaining control refers to the process through which the United States expanded its influence and authority, both domestically and internationally, during the 19th century. This term encompasses the various political, military, and economic strategies employed to assert dominance over territories and peoples, which were essential in shaping a distinct American identity. It highlights the intersection of nationalism, imperialism, and the belief in Manifest Destiny that fueled expansionist policies and the establishment of America as a global power.