The Navajo language was a good choice for a secret code during World War II because:
1. **Complexity**: The Navajo language is extremely complex and has a unique syntax and tonal qualities that make it very difficult for non-speakers to understand.
2. **Unwritten Language**: At that time, Navajo was primarily a spoken language and did not have a written form, adding an extra layer of secrecy to the code.
3. **Familiarity**: Navajo speakers were not widely spread outside of the Navajo community, reducing the likelihood of the code being cracked by enemy forces.
4. **Native Speakers**: Using Navajo speakers as code talkers ensured that the code was communicated accurately and efficiently, minimizing errors in transmission.
5. **Incorporation of Native Terminology**: The code used Navajo words to represent military terms, adding an additional layer of obscurity for anyone trying to decipher the messages.
Overall, the unique characteristics of the Navajo language made it an excellent choice for a secret code during World War II, contributing significantly to the success of encrypted communication by the U.S. military.
