Stationed in Hawaii, they were some of first to fire back at attacking Japanese war planes during Japan's attack on Pearl Harbor. The film and book by James Jones "From Here to Eternity" was based on some of the Wolfhound regimental life. After seeing extensive action in the Pacific theater during World War II, especially on the island of Guadalcanal during the Battle of Mount Austen, the Galloping Horse, and the Sea Horse, it fought in the last days of the New Georgia Campaign on the right flank on the advance on Munda, Solomon Islands, later during the Battle of Luzon and the ensuing occupation of Japan, the 27th Infantry Regiment earned the nickname "Gentle Wolfhounds" for their support of the Holy Family Home orphanage.