This section sets forth the beginning and ending dates of each war period beginning with the Indian wars. Note that the term period of war in reference to pension entitlement under 38 U.S.C. 1521 , 1541 and 1542 means all of the war periods listed in this section except the Indian wars and the Spanish-American War. See § 3.3(a)(3) and (b)(4)(i) . (a)Indian wars. January 1, 1817, through December 31, 1898, inclusive. Service must have been rendered with the United States military forces against Indian