Allen Dale June, one of the 29 original Navajo Code Talk-­ers who confounded the Japanese during World War II by transmitting messages in their native language, has died. He was 91.

Mr June died of natural causes at the Veteran Assistance Hospital in Prescott, Arizona, his wife Virginia, said.

With his death, only two of the 29 original Code Talkers are still living.

The Code Talkers took part in every assault the US Marines conducted in the Pacific from 1942 to 1945.

They sent thousands of messages without error on Japanese troop movements, battlefield tactics and other communications critical to the war’s ultimate outcome.

Several hundred Navajos served as Code Talkers during the war, but a group of 29 that included Mr June developed the code based on their native language. Their role in the war was not declassified until 1968.

Mr June attained the rank of sergeant. He and other origi-nal Code Talkers received Congressional Gold Medals in 2001.