The Navajo Nation is mourning the loss of Navajo Code Talker Teddy Draper Sr. who died in Prescott Thursday morning.

Draper, who was 96 years old, previously fought in the Battle of Iwo Jima and received a Purple Heart as well as a Congressional Silver Medal, according to Nation officials.

He went on to teach Navajo language classes at Rough Rock Community High School and his teaching curriculum is still used at several schools, including Navajo Preparatory School and Dine College.

The Nation says they’ll fly flags at half-staff to honor Draper and his legacy, however, funeral arrangements have not been announced yet.

The news comes less than two weeks after Navajo Code Talker George B. Willie Sr. died. There are 10 Code Talkers remaining.