In World War II, the Canadian Armed Forces employed First Nations soldiers who spoke the Cree language as code talkers. Owing to oaths of secrecy and official classification through 1963, the role of Cree code talkers were less known than their US counterparts and went unacknowledged by the Canadian government.[24] A 2016 documentary, Cree Code Talkers, tells the story of one such Métis individual, Charles "Checker" Tomkins.