Respuesta :
Answer:
Were it not for the Navajos, the Marines would never have taken Iwo Jima,” said Maj. Howard Connor, the signal officer of the Navajos at Iwo Jima in 1945. Photo credit U.S. Marine Corps Corp. Henry Bake, Jr. and Pvt. 1st Class George H. Kirk, Navajo
Explanation:
Likely because they weren't natives of the American land, and that some still held a grudge against America. They were really only used as code breakers.