veteran
(4) For the purposes of this subsection, the term “veteran” means any individual who served in the active military or naval service of the United States at any time on or after July 25, 1947 , and prior to January 1, 1957 , and who, if discharged or released therefrom, was so discharged or released under conditions other than dishonorable after active service of ninety days or more or by reason of a disability or injury incurred or aggravated in service in line of duty; but such term shall not include any individual who died while in the active military or naval service of the United States if his death was inflicted (other than by an enemy of the United States) as lawful punishment for a military or naval offense.