The Army has determined that there is a continuing military need for these lands to ensure that it can successfully execute and fulfill its mission in Alaska, which includes cold-weather training in arctic and subarctic conditions. These lands would be reserved for use by the Army for military maneuvering, training, equipment development and testing, and other defense-related purposes. Military activities conducted on the withdrawn lands would be consistent with those conducted since the previous withdrawal extension in 1999. The Army is proposing only to extend the period of use of the existing withdrawn areas, not to expand or add impact areas on the withdrawn lands... The Army proposes to extend the land withdrawal from public use for 25 years or more or assign control of the lands to the Secretary of the Army until such time as the Army determines it no longer needs them for military purposes... As required under the National Environmental Policy Act (NEPA), the Army has prepared..