Final answer:
The Navajo Code Talkers received formal recognition in 1982 with a proclamation by President Ronald Reagan, but it took until 2001 for them to be awarded Congressional Gold Medals, 56 years after the end of WWII.
Step-by-step explanation:
How many years after WWII did the Navajo Code Talkers finally receive formal recognition? The Navajo Code Talkers, using their expertise in their native language and extensive training, played an indispensable role in the success of the United States military during World War II by sending secure communications. Despite their significant contributions, it was not until many years later that they were formally recognized for their service and valor.
For decades, the heroic efforts of the Navajo Code Talkers remained largely unacknowledged. This recognition came in the form of congressional honors and national praise. Considering the National WWII Museum's information, their contributions to the war effort were of utmost importance.
It was in 1982, almost four decades after the end of the war, that President Ronald Reagan signed a proclamation recognizing the Navajo Code Talkers. However, it took until 2001, some 56 years after the end of the war, for the original 29 Navajo Code Talkers to receive Congressional Gold Medals, the highest civilian honor, for their service.