The U.S. Air Force is stepping up construction at the Tinian North airfield, once used by the largest B-29 bomber fleet during World War II, and at the Tinian International airfield, Gen. Kenneth Wilsbach, commander of the Pacific Air Forces, said in an interview on Wednesday. —
https://asia.nikkei.com/Editor-s-Picks/Interview/U.S.-to-reclaim-WWII-airfield-in-Pacific-clearing-jungle-by-summer
Tinian is a part of the United States, and is also a part of the CNMI. Along with Guam, they are the westernmost islands of the US in the Pacific —
https://en.wikipedia.org/wiki/Tinian
North Field was one of several bases for Twentieth Air Force Boeing B-29 Superfortress operations against the Japanese Home Islands in 1944–45. North Field contributed aircraft to the 1945 campaign to burn out Japanese cities with incendiary bombs, including the 9 March 1945 bombing of Tokyo which still stands as the most destructive air raid ever. North Field was the base for the 313th Bombardment Wing which carried out Operation Starvation, the dropping of naval mines in the harbors and sea lanes used by Japan. North Field was also the base for the 509th Composite Group which flew the atomic bombing raids on Hiroshima and Nagasaki in August 1945. The incendiary campaign (which destroyed 40% of the targeted cities),[1] the aerial mining campaign (which starved Japan of essential food imports) and the two atomic attacks have all been argued as major factors in the surrender of Japan. —
https://en.wikipedia.org/wiki/North_Field_(Tinian)