(1) any citizen or resident of the United States dying while in active service of the Armed Forces of the United States, if such decedent
(A) was killed in action while serving in a combat zone, as determined under section
112 (c), or
(B) died as a result of wounds, disease, or injury suffered while serving in a combat zone (as determined under section
112 (c)), and while in the line of duty, by reason of a hazard to which such decedent was subjected as an incident of such service,
