"In this June 15, 2012, file photo, Blas Preciado, left, a Vietnam War veteran of the Kiowa tribe, talks with Marine Cpl. Frank Tartsah, right, also of the Kiowa tribe, during a Native American blessing for veteran and active-duty servicemen in Camp Pendleton, Calif. ""The Warrior Tradition,"" a new film set to air on most PBS stations Monday, Nov. 11, 2019, examines the history of Native Americans in the U.S. military since World War I. (AP Photo/Gregory Bull, File)"
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