Focus on the theory not the other 3 letters
45th Infantry Division (United States)
The division's original shoulder sleeve insignia, approved in August 1924,[12] featured a swastika, a common Native American symbol, as a tribute to the Southwestern United States region which had a large population of Native Americans. However, with the rise of the Nazi Party in Germany, with its infamous swastika symbol, the 45th Division stopped using the insignia.[13] After a long process of reviewing design submissions, a design by Woody Big Bow, a Kiowa artist from Carnegie, Oklahoma, was chosen for the new shoulder sleeve insignia.[14] The new insignia featured the Thunderbird, another Native American symbol, and was approved in 1939