(A) ** Code Talkers
(B) Manhattan Project
(C) Hiroshema
(D) Battle of Midway
EXPLANATIONS BELOW
Concept note-1: -C During the early part of World War II, the Japanese were able to figure out any secret code used by the U.S. military. To solve this problem, the Marines created a special alphabet used by Navajo soldiers to send messages the Japanese couldn’t decipher.
Concept note-2: -The U.S. Marines knew where to find one: the Navajo Nation. Marine Corps leadership selected 29 Navajo men, the Navajo Code Talkers, who created a code based on the complex, unwritten Navajo language. The code primarily used word association by assigning a Navajo word to key phrases and military tactics.
Concept note-3: -The Navajo Code Was Never Broken Although other Native American languages were used to create codes in World War I, WWII and other conflicts, the Navajo’s code was one of the most successful.
Concept note-4: -During World War II, sending and receiving codes without the risk of the enemy deciphering the transmission required hours of encrypting and decrypting the code. The U.S. Marine Corps, in an effort to find quicker and more secure ways to send and receive code, enlisted Navajos as code talkers.
Concept note-5: -Most people have heard of the famous Navajo (or Diné) code talkers who used their traditional language to transmit secret Allied messages in the Pacific theater of combat during World War II.