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. See also List of United States National Historic Landmarks in United States commonwealths and territories, associated states, and foreign states National Register of Historic Places listings in the Marshall Islands References Buildings and structures on the National Register of Historic Places in the Marshall Islands Historic districts in the Marshall Islands National Historic Landmarks in the Marshall Islands Kwajalein Atoll World War II on the National Register of Historic Places 1944 establishments in the Marshall Islands Historic districts on the National Register of Historic Places in the Marshall Islands Islands of the Marshall Islands