a member of an armed force under his jurisdiction who dies while on active duty or while performing authorized travel to or from active duty;

a Reserve of an armed force who dies while on inactive duty training (other than work or study in connection with a correspondence course of an armed force or attendance, in an inactive status, at an educational institution under the sponsorship of an armed force or the Public Health Service);

any Reserve of an armed force who, when authorized or required by an authority designated by the Secretary, assumed an obligation to perform active duty for training, or inactive duty training (other than work or study in connection with a correspondence course of an armed force or attendance, in an inactive status, at an educational institution, under the sponsorship of an armed force or the Public Health Service), and who dies while traveling directly to or from that active duty for training or inactive duty training or while staying at the Reserve’s residence, when so authorized by proper authority, during the period of such inactive duty training or between successive days of inactive duty training;

any member of a reserve officers’ training corps who dies while performing annual training duty under orders for a period of more than 13 days, or while performing authorized travel to or from that annual training duty; or any applicant for membership in a reserve officers’ training corps who dies while attending field training or a practice cruise under section 2104(b)(6)(B) of this title or while performing authorized travel to or from the place where the training or cruise is conducted; or a graduate of a reserve officers’ training corps who has received a commission but has yet to receive a first duty assignment; or