The 25th Infantry Division has defended Hawaii since 1921. On December 7, 1941, the 25th Infantry Division received its debut of fire when Japanese forces attacked military facilities on the island of Oahu. The division rapidly deployed to southern and eastern coasts of the island, ready to defend against a possible Japanese invasion. The division was made famous after relieving the Marines at Guadalcanal in 1942. Their performance during this operation, the 25th Infantry Division (25th ID) earned its nickname "Tropic Lightning."
Today there are 7,897 active duty, 11,686 family members and 8,172 civilians that consider Schofield Barracks/Fort Shafter home.