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Joint Support Force, Japan (JSF-J)

The mission of the Joint Support Force, Japan (JSF-J) was to support the Government of Japan with disaster response in the wake of the devastating 9.0 Tohoku earthquake and subsequent tsunami that struck off the northern coast of Japan on 11 March 2011. The Joint Support Forces's mission was part of a broader US whole-of-government approach to support the Government of Japan's request for humanitarian assistance. This effort included coordination with the US Department of State, US Agency for International Development, the Department of Energy, Government of Japan and Japan Self-Defense Force leadership, and US Pacific Command. JSF-J was also a combined task force, involving both Japanese and US forces.

Following the disaster in Japan resulting from the Tohoku earthquake on 11 March 2011 and the subsequent tsunami, the US military became engaged in 2 dynamic operations that were focused on assisting the Government of Japan and Japan Self Defense Forces to the greatest extent possible. The 2 operations included: humanitarian assistance and disaster response as part of Operation Tomodachi and closely monitoring the events related to the Fukishima nuclear power plant in order to provide consequence management assistance if requested. In support of this, US Pacific Command activated elements of Joint Task Force 519 (JTF 519) to augment the staff of US Forces, Japan (USFJ) to form the Joint Support Force, Japan (JSF-J). JSF-J subsequently became the coordinating element for US support in Japan as part of both Operation Tomodachi and Operation Pacific Passage. Operation Pacific Passage, however, was directed by Joint Task Force 505, led by III MEF. Joint Support Forces Japan was made up of elements from various US services, as well as the Japanese Self Defense Force's Joint Task Force Fuji (JTFF). The US Army contingent was designated Logistics Task Force 35 and was led by the 35th Combat Sustainment Support Battalion, as well as elements from Headquarters and Headquarters Company, 10th Support Group; 83rd Ordnance Battalion; 505th Quartermaster Battalion; 1st Battalion, 1st Air Defense Artillery Regiment; and the 1st Battalion, 1st Special Forces Group (Airborne). The US Marine Corps contingent was led by 3rd Marine Expeditionary Brigade (Forward). The US Air Force contingent involved elements of the 353rd Special Operations Group.

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Page last modified: 03-12-2013 17:03:27 ZULU