One of the last remaining Navajo code talkers of World War II has died. Who were the code talkers? Here's what to know. http://cnn.it/2cDaEZj | CNN

Made official in 1982, #NavajoCodeTalkersDay recognizes the Navajo heroes that helped secure an Allied victory in WWII. During the war, the U.S. government enlisted over 400 Navajo citizens to use their unbreakable native code for U.S. Marine operations. | Call of Duty Endowment