Pvt. Marcelino Serna was an undocumented Mexican immigrant who joined the U.S. Army and fought in World War I.
He was the first Latino to be awarded the Distinguished Service Cross.
“[In 1918, Serna] stood out for single-handedly capturing 24 German soldiers after a German bullet had grazed his head,” according to the Army’s website. “Perhaps even more impressive, Serna prevented another American Soldier from summarily executing all the captives in the heat of the moment.”