During WWII the Marines enlisted Navajo code talkers to send messages. The Navajo language is not written down and is very difficult for non-native speakers to speak and understand. The Marines started with 29 Navajo men for this project. Their code became unbreakable and fast. They could decode 3 lines of English in 20 seconds versus the normal 30 minutes.In this lesson students will hear audio of spoken Navajo language. They will make predictions on what language they think is being spoken. After learning the language they will research the Navajo code breakers. Students will then use the Navajo dictionary to practice creating and deciphering messages. Students will then be able to make connections to cybersecurity.