TINIAN, Commonwealth of the Northern Marianas Islands - U.S. Marines with Marine Air Control Group 18 and Navy Seabees with 30th Naval Construction Regiment clear debris from Typhoon Mangkhut on Tinian Sept. 11, 2018. Typhoon Mangkhut struck the Commonwealth of the Northern Marianas Islands September 10. Service members from Indo-Pacific Command are providing Department of Defense support to the Federal Emergency Management Agency (FEMA), and working with Guam and Commonwealth of the Northern Mariana Islands' civil and local officials for typhoon recovery efforts.