During the war, the Navajo had become used to life off the reservation. Navajos on the reservation could not vote and were not considered equal to US citizens. Navajo leaders brought lawsuits against Bureau of Indian Affairs and federal government for the right to vote and own land.
Their future wasn't very bright. Native Americans who could speak Navajo had to go back to their regular lives which often weren't very good because all of their wartime efforts were highly classified. Everyone had to pretend as if they never helped and it was so until 1968 when it was declassified and they finally started getting some long due respect.