To aid the garrison in the construction of the defenses, the 1,247 men of the 111th Pioneers, similar to the Seabees of the U.S. Navy, along with the 970 men of the Fourth Fleet's construction battalion were brought in.
Untuk membantu garnisun dalam pembangunan pertahanan, 1.247 anggota pasukan pionir 111, mirip dengan Seabee-nya AL AS, beserta 970 anggota Batalyon konstruksi Armada Keempat didatangkan.