21.   The complex Navajo language was little known outside the southwestern United States, and the Code Talkers added word substitutions.

22.   The Navajo language is complex, and through circumlocution the Code Talkers made it even more so.

23.   The men developed an uncrackable code based on the Navajo language.

24.   It was World War I veteran Philip Johnston, the son of a missionary, who seized on the idea of using the Navajo language as a wartime code.

25.   The game also was broadcast in the Navajo language for the first time by a radio station in Arizona.