Navajo is an unwritten language and is considered unintelligible to anyone except other Navajo speakers, so it was identified by the Marine Corp as a potential tool for secure military communications. "Code Talkers were communications specialists. Their job was to send coded messages about troop movements, enemy positions, and other critical information on the battlefield. Some Code Talkers translated messages into their Native languages and relayed them to another tribal member. Others developed special codes within their languages that they used in combat to send important messages." SOURCE During World War II, "tests in the Pacific under combat conditions proved that classified messages could be translated into Navajo, transmitted, received, and translated back into English quicker than messages which were encoded, transmitted, and decoded employing conventional cryptographic facilities and techniques." SOURCE
In this video segment adapted from American Experience: "We Shall Remain," reenactments help tell the story of how the Cherokee people were forced from their lands in the southeast. The U.S. government initially promised the Cherokee and other Native American tribes that if they could assimilate into European Americans lifestyles, they would be considered equals. But a new movement in the late 1820s, supported by President Andrew Jackson, promoted removal of Native Americans from the eastern U.S. The Indian Removal Act, passed in 1830, called for the tribes to leave peacefully. Feeling that removal from their own lands was not an option, the vast majority of people stayed. When the deadline to leave passed, federal troops and state militia forcefully assembled the Cherokee people, letting them take nothing but the clothes on their backs, and made them march an 850-mile trek to new lands. Many died on this march, known as the Trail of Tears, which lasted through one of the hardest winters the region had ever experienced.