Yokoi was treated at a hospital in Guam before heading home to Japan, which he had not seen since 1941.
Yokoi was sent to Guam after being drafted into the Japanese Army in 1941.
During the US invasion he and a number of other soldiers made their way into the jungle to avoid being taken as prisoners of war.
Japanese government officials flew to the island to help repatriate the soldier, who had not seen his homeland for nearly 30 years.
During his 27 years in isolation, he survived by eating frogs, rats, and eels as well as fruits and nuts, according to his obituary in The New York Times.
He made his own shelter, using bamboo and reeds to cover a cave he dug himself. In his memoirs, he said he buried at least two of his comrades eight years before he was discovered.
Although he was repatriated to Japan almost immediately, he reportedly flew back to Guam several times throughout the remainder of his life, including for his honeymoon.
According to his obituary, Yokoi had a hard time readjusting to life in Japan.
Yokoi covered his cave with bamboo and reeds.
The soldier was a tailor before the war, skills that helped him make his shelter and clothing, according to Stars & Stripes.
