Commonwealth of the Northern Mariana Islands

Commonwealth Bureau of
Military Affairs

Office of the Governor

About the site

This site is brought to you by CBMA to provide supporting resources regarding military activities in the CNMI. You can search terms or visit project pages to learn more, or contact us here if you have a question or want to sign up to receive email updates.

For military personnel, please also see a Field Guide and Pocket Guide developed to support enhanced understanding of environmental conditions and compliance considerations in CNMI.

Timeline of activities

The following timeline pinpoints important milestones for U.S. military operations and proposals in the CNMI. As shown, the U.S. military has been a part of CNMI culture and economy for many decades.


The Covenant establishing the CNMI as a U.S. Commonwealth was signed by negotiators on February 15, 1975. Section 803 required that a separate Technical Agreement Regarding Use of Land To Be Leased by the United States in the Northern Mariana Islands be executed simultaneously with the Covenant.


U.S. Department of Defense, Military Training in the Marianas Final Environmental Impact Statement and Record of Decision (June 1999)


Joint Region Marianas (JRM) was established in accordance with congressional legislation implementing the recommendations of the 2005 Base Realignment and Closure Commission.


Mariana Islands Range Complex Final Environmental Impact Statement/Overseas Environmental Impact Statement, published May 2010.

The Quadrennial Defense Review (QDR) evaluated global U.S. military strategy and priorities (Department of Defense 2010,, and called for development of additional training capabilities for unit, combined, and joint forces in the Western Pacific.

Guam and CNMI Military Relocation Final Environmental Impact Statement: Relocating Marines from Okinawa, Visiting Aircraft Carrier Berthing, and Army Air and Missile Defense Task Force Volume 3, published in July 2010


Training Needs Assessment: An Assessment of Current Training Ranges and Supporting Facilities in the U.S. Pacific Command Area of Responsibility (hereafter the “Assessment”) identified and validated unfilled training requirements for units/commands in the U.S. Pacific Command Area of Responsibility (Department of the , 2013,


Mariana Islands Range Complex Airspace Environmental Assessment/Overseas Environmental Assessment, published in June 2013.


The 2014 QDR confirmed the U.S. military’s continued commitment to rebalance the Asia-Pacific region, which is increasingly central to U.S. political, economic and security interests.


Record of Decision for the Final Supplemental Environmental Impact Statement for Guam and Commonwealth of the Northern Mariana Islands Military Relocation


U.S. Air Force (USAF) Tinian Divert Infrastructure Improvements Supplemental Environmental Impact Statement (SEIS)

Mariana Islands Training and Testing SEIS/Overseas EIS, published June 2020

Atlas of activities

This atlas shows the location of each of the five major projects that the U.S. military has proposed in CNMI, including CJMT, MIRC, Guam and CNMI Military Relocation, Divert, and MITT.

This proposed project (cantonment, housing, and a Live Fire Training Range Complex [LFTRC]) is located at Finegayan, Guam (northwest cost) and at Anderson Air Force Base (Yigo, located on Guam’s northeast coast).

This proposed project is located on Tinian on land (for fuel pipeline and associated buildings and systems) and roads between and including the seaport and the airport.

This proposed project is located at MIRC, on the northwest coast of Guam near the town of Hagatña. MIRC provides urban training environments, airspace training, surface and subsurface seaspace training, and live ordinance training in authorized training spaces.

This proposed project would occur within the transit corridor between the MIRC and the Hawaii Range Complex and on Farallon de Medinilla).

The proposed CNMI Joint Military Training project would include construction and operation of a unit level Range and Training Area (RTA) on Tinian and a combined level RTA on Pagan. An RTA is a collection of closely located live-fire ranges, training courses, maneuver areas, and associated support facilities.

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