Kodiak Military History Museum is housed in a World War II bunker at Miller Point in Fort Abercrombie State Historical Park. The historic ruin is a buried concrete structure built in 1942 to store ammunitions for World War I period eight-inch naval guns, to which the remains are still on display. The bunker was completed on December 1943 by Navy SeaBees of CB-43 and sits between the naval guns where a splendid view of Monashka Bay will be enjoyed. The museum will take you a step back in time and discover its story while you enjoy its beauty.

The bunker was restored by the State Park Service. The exteriors doors were replaced to perfectly match the original. Its interior was repainted to its original colors, after it was damaged by graffiti sandblasting. The interior doors were also restored using original doors salvaged from a similar bunker. The bunker has several rooms which stores different projectiles and ammunitions.

The naval guns served as the third most important naval defense installation according to Harbor Defense of Kodiak. The other two are Castle Bluffs on Long Island and St. Peters Head in Chiniak. It was classified as MKVI 3A2 and has a range of 20 miles. Portions of the naval gun barrels are displayed and some parts are found quite distant from their originals positions as they were destroyed by explosives in 1948.

The collection mostly consists of artillery equipment, communication devices, uniforms, photographs, documents and artworks belonging from World War I and II. It also includes, teletype machines, typewriters, artillery shells and loaders, fire control equipment, vehicles such as a 1945 Willys MB Jeep and a 1942 Dodge Ambulance; uniforms, gas masks, flags, aircraft parts, an auxiliary power unit and some postal covers. The collections are from 1911 to the present.