Fort Wint was part of the harbor defenses of Manila and Subic Bays built by the Philippine Department of the United States Army between 1907 and 1920 in response to recommendations of the Taft Board[2] prior to the non-fortification clause of the Washington Naval Treaty.

Fort Wint was armed with fourteen Taft-Endicott period coast artillery pieces mounted in five batteries.

[6] In the first week of January 1942, as Allied forces withdrew to the Bataan peninsula, Fort Wint was ordered abandoned and its crews reassigned to other American positions in Manila Bay.

The four 3-inch (76 mm) guns of Batteries Flake and Jewell were removed and divided between Forts Flagler and Casey in Washington state where they remain on display.

Grand Island was operated for many decades after WW II by Subic Bay US Navy Special Services as an on base resort for US Military and Civilians stationed throughout the Philippines.

After the six-month rescue mission, Grande Island was rehabilitated and was restored to its Special Services resort configuration until 1991.