The late 19th-century imperial surge of the United States greatly affected Latino Americans. The fourth volume of "Latino-American History", "Struggling to Become American: 1899-1940", covers Puerto Rican and Cuban immigration, along with Mexican migration, and spotlights Latinos who fought for the United States during World War I. Students will also find discussion about conditions on the U.S. homefront, where a great number of Latino laborers were recruited to work in the railway, steel, meatpacking, construction, and agriculture industries. The author also describes early Latino-American struggles for acceptance, equality, and fair treatment in the United States, particularly during the Great Depression.