<h2><em>Mexican migration increased during the 1910s and 1920s, pulled by U.S. needs for workers, particularly with the departures of Chinese and Japanese agricultural laborers, and pushed by the Mexican revolution and other upheavals. Demand for their labor dropped sharply with the onset of the Great Depression.</em></h2>
The complex causes<span> of the </span>revolution<span> ultimately led to the colonists issuing a Declaration of Independence and fighting a war for freedom from British rule.
