((a)) ** .—** Health-care resources of the Department of Defense shall be shared with health-care resources of the Department of Veterans Affairs in accordance with or under .
((b)) ** .—** Pursuant to an agreement entered into under or , the Secretary of a military department may reimburse the Secretary of Veterans Affairs from funds available for that military department for the payment of medical care provided under section 1079 or 1086 of this title.
((c)) ** .—** The Secretary of Defense may prescribe by regulation a premium, deductible, copayment, or other charge for health care provided to covered beneficiaries under this chapter pursuant to an agreement entered into by the Secretary of a military department under or .
((d)) ** .—** Members of the armed forces on active duty during and immediately following a period of war, or during and immediately following a national emergency involving the use of the armed forces in armed conflict, may be provided health-care services by the Department of Veterans Affairs in accordance with .