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Palm Circle Historic District
U.S. National Register of Historic Places
U.S. National Historic Landmark District
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Location	Roughly bounded by Carter Dr., Richardson and Funston Rds., A and B Sts., Honolulu, Hawaii
Coordinates	21°21′0″N 157°53′25″W / 21.35000°N 157.89028°W / 21.35000; -157.89028
Area	32 acres (13 ha)
Built	1907 (1907)
Architect	Quartermaster Corps
NRHP reference No.	84000104
Significant dates
Added to NRHP	October 26, 1984
Designated NHLD	May 28, 1987

Palm Circle or the Pineapple Pentagon, is a historic portion of Fort Shafter in Honolulu, Hawaii. Designated a National Historic Landmark in 1987, it housed the headquarters of the commanding general and his staff, U.S. Army forces, Pacific Ocean Areas, during World War II. By 1944 this command was responsible for the supply and administration of all U.S. Army personnel in the Central and South Pacific, and from 1943 to 1945, carried out logistical planning for the invasions of the Gilberts, Marshalls, Marianas, Guam, Palau, and Okinawa.

Description

Palm Circle is one of the centerpieces of Fort Shafter, located north of downtown Honolulu on the east side of Interstate H-201. It is a roughly oval grassy sward, ringed by royal palms and Palm Circle Drive. Across Palm Circle Drive are buildings serving a variety of military purposes. To the north and west lie a number of officer housing units, while former barracks buildings (adapted to administrative uses) lie to the south. On the east side of the circle lie three office buildings, colloquially known as the Pineapple Pentagon, that were at the heart of the United States Army operations in the Pacific War. Richardson Hall (T-100) is the only one visible from the circle due to the steep terrain.

Fort Shafter was established in 1905, not long after the American annexation of Hawaii. Most of the officer quarters and barracks were built in the years immediately following. Following the Japanese Attack on Pearl Harbor in 1941, the Army needed to greatly expand its presence, and Richardson Hall and the other administrative buildings were built in 1943-44 to meet this demand. The buildings have multistory underground bunkers, and there are fortified service tunnels connecting them. General Robert C. Richardson Jr. ran the Army's Pacific operations from these facilities from 1943 until the end of the war.

See also

• List of National Historic Landmarks in Hawaii
• National Register of Historic Places in Oahu

References

1. ^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
2. ^ "Palm Circle". National Historic Landmark summary listing. National Park Service. Archived from the original on 2011-05-11. Retrieved 2008-07-04.
3. ^ Thompson, Erwin N. (June 13, 1986). "Palm Circle, 100 Area, Fort Shafter" (pdf). National Register of Historic Places - Nomination and Inventory. National Park Service. Retrieved 25 May 2012.
4. "Palm Circle, 100 Area, Fort Shafter" (pdf). Photographs. National Park Service. Retrieved 25 May 2012.

• Military installations established in 1907
• Buildings and structures in Honolulu
• National Historic Landmarks in Hawaii
• Historic districts on the National Register of Historic Places in Hawaii
• National Register of Historic Places in Honolulu
• Forts on the National Register of Historic Places in Hawaii
• World War II on the National Register of Historic Places in Hawaii