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Roi-Namur

Coordinates: 9°23′46″N 167°28′33″E / 9.39611°N 167.47583°E / 9.39611; 167.47583
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Roi–Namur Battlefield
Roi-Namur is located in Marshall Islands
Roi-Namur
LocationKwajalein Missile Range, Kwajalein Atoll
Coordinates9°23′46″N 167°28′33″E / 9.39611°N 167.47583°E / 9.39611; 167.47583
Built1944
NRHP reference No.85001758
Significant dates
Added to NRHPFebruary 4, 1985[1]
Designated NHLDFebruary 4, 1985[2]

Roi-Namur (/ˌrɔɪ nəˈmʊər/ roy nə-MOOR) is an island in the north part of the Kwajalein Atoll in the Marshall Islands. Today it is a major part of the Ronald Reagan Ballistic Missile Defense Test Site, hosting several radar systems used for tracking and characterizing missile reentry vehicles (RV) and their penetration aids (penaids). A flooding event by wave overtopping made national news in the United States, with dramatic footage of water bursting through a door.

Roi-Namur is a military base of the United States, but is leased land from the Republic of the Marshall Islands. However, Defense of the Marshall Islands is the responsibility of the United States through a Compact of Free Association.

Etymology

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The name of the new island is after the formerly separate islands Roi and Namur were joined by landfill. Roi is originally from Marshallese Ruot, while Namur is originally from Marshallese Nim̧ur.

History

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Aerial view of the landings, February 1944

Germany annexed the Marshalls in 1885 but did not put government officials on the islands until 1906, leaving island affairs to a group of powerful German trading companies. During WW1, the Japanese seized the Marshall Islands, later under the Treaty of Versailles, Japan formally took over after World War I under the League of Nations mandate. They colonised the Marshalls extensively, developing and fortifying large bases on many of the islands. Eventually using it to aid in their enormous Pacific invasion in December 1941. The Pacific war between the United States eventually reached the Marshall Islands in 1944.

Roi-Namur was the target of the U.S. 4th Marine Division in the Battle of Kwajalein, in February 1944. During the Japanese occupation, the two islands (Roi to the west (Marshallese: Ruot, [rʷuɔtˠ]) and Namur to the east (Nim̧ur, [nʲimˠurʷ])) were connected by a narrow neck of land and causeway. After the American occupation, US Navy SeaBees filled the area between the islands by December 1944; the two now joined islands are presently called Roi-Namur with a total area of about one square mile.

Roi-Namur was selected by DARPA as a host site for a series of radar experiments under the Project Defender umbrella, and Project PRESS in particular. These experiments intended to use radar means to distinguish an enemy RV from its penaids though the examination of the size, shape and velocity of the objects, as well as examining the wake they left in the upper atmosphere. By building on Roi-Namur, they were able to use the test shots being used by the US Army's Nike-X program installed on Kwajalein Island and Meck Island further to the south.

The island was flooded in December 2008 by a "massive wave" which swamped coastal roads.[3][4] A similar flood from one or more rogue waves or sneaker wave damaged buildings and swamped runways, on 20 January 2024.[5][6] The wave flooding event was a popular clip on social media and news sites in the United States.[7]

Today

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Roi-Namur is home to an about 120 American and Marshallese employees of the Reagan Test Site.

The Roi side is the main housing area, with the retail and recreation facilities there. Activities on Roi-Namur range from a nine-hole golf course, saltwater swimming pool, scuba club, movie theater, volleyball, and basketball court. Roi hosts the Freeflight International Airport (Marshall Islands) with one runway for small planes that commute from Kwajalein bringing additional workers. Additional Marshallese daytime workers come via ferry from the island of Enniburr.

The Namur side is home to the ALCOR, ALTAIR, MMW and TRADEX radar tracking stations.

There is a small launch facility on Roi-Namur. Rockets launched here are usually sounding rockets that ascend beyond the atmosphere but have short ranges. There are crumbling remnants of Japanese blockhouses and pillboxes around Roi-Namur.

  • Map of Roi-Namur during World War II. The causeway is roughly centered.
    Map of Roi-Namur during World War II. The causeway is roughly centered.
  • ALTAIR radar
    ALTAIR radar

See also

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References

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  1. ^ "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008.
  2. ^ "Roi-Namur". National Historic Landmark summary listing. National Park Service. Archived from the original on October 7, 2012. Retrieved June 28, 2007.
  3. ^ Greshko, Michael (April 25, 2018). "Within Decades, Floods May Render Many Islands Uninhabitable". National Geographic News. Archived from the original on August 25, 2019. Retrieved August 25, 2019.
  4. ^ "Wave-driven flooding and overwash on Roi-Namur Atoll". www.usgs.gov. March 2014. Retrieved August 25, 2019.
  5. ^ Johnson, Giff (January 22, 2024). "Freak waves cause damage at US army base, shut airports in remote islands". Radio New Zealand. Retrieved January 23, 2024.
  6. ^ Matthew Cappucci (January 25, 2024). "Massive waves slammed a U.S. Army base. How it happened is mysterious". The Washington Post. Retrieved January 26, 2024.
  7. ^ Oberholtz, Chris (January 24, 2024). "Dramatic footage from Marshall Islands captures huge waves pummeling US military building". FOX Weather. Retrieved June 21, 2024.
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