of the infrastructure capacity of existing European locations and their ability to accommodate additional forces. (3) An overview of new locations in Europe that might be considered for permanently stationed forces and the estimated cost and scope of infrastructure investments, to include improvements to training areas, which would be required at those locations to support permanently stationed forces, including an assessment of what infrastructure investments might be provided by the host-nation as well as new construction or modernization of existing facilities that would be funded by the United States. (4) A detailed list of investments in equipment, supplies, logistics, storage, and maintenance, at current and new locations in Europe, required to support additional permanently stationed forces. (5) An assessment of the readiness advantages and disadvantages associated with stationing additional permanent forces at European locations. (6) A discussion of potential challenges with stationing additional permanent forces or developing new locations for permanently stationed forces as a result of treaty obligations, international agreements, or other legally binding instruments. (c) Form The report required by subsection (a) shall be submitted in unclassified form but may include a classified annex. 8. Report on improving training areas in the United States European Command’s areas of responsibility (a) Report required Not later than April 1, 2018, the Secretary of Defense, in coordination with the Secretaries of the military departments, the Commander of the United States European Command, and the Commander of the United States Special Operations Command, shall submit to the congressional defense committees a report on the location, capabilities, and capacities of training areas in the United States European Command’s areas of responsibility, including air and ground ranges, range complexes, military training routes, and special-use areas. (b) Elements The report required by subsection (a) shall include the