What was the primary challenge faced by the Code Talkers during their service?

The primary challenge faced by the Code Talkers during their service was the fear that their language could be exploited by enemies. This concern stemmed from the unique nature of their work, where Native American languages were used to create secure communication codes for military operations during World War II. The Code Talkers understood that if their language were to be intercepted or learned by enemy forces, it could compromise military plans and endanger lives. Therefore, they were inherently aware of the importance of their language's secrecy and the potential consequences if that confidentiality failed.

While maintaining secrecy about their operations was important, the overarching fear related to their language's vulnerability carried significant weight during their missions. The fear of exploitation served as a constant reminder of the importance of their role, motivating the Code Talkers to uphold the utmost caution in their communications.