Roi-Namur
Roi–Namur Battlefield  | |
Roi-Namur  | |
| Location | Kwajalein Missile Range, Kwajalein Atoll | 
|---|---|
| Coordinates | 9°23′46″N 167°28′33″E / 9.39611°N 167.47583°E | 
| Built | 1944 | 
| NRHP reference No. | 85001758 | 
| Significant dates | |
| Added to NRHP | February 4, 1985 | 
| Designated NHLD | February 4, 1985 | 
Roi-Namur (/ˌrɔɪ nəˈmʊər/ roy nə-MOOR) is an island in the north part of the Kwajalein Atoll in the Marshall Islands. Today, the island 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).
Roi-Namur is a military base of the United States, leased from the Republic of the Marshall Islands; however, defense of the Marshall Islands is the responsibility of the United States through the Compact of Free Association.
In 2024, a flooding event caused by wave overtopping made national news in the United States, with dramatic footage of water bursting through a door.