Active Military, Naval, or Air Service Law and Legal Definition
According to 38 USCS § 101, active military, naval, or air service" includes-
(A) active duty;
(B) any period of active duty for training during which the individual concerned was disabled or died from a disease or injury incurred or aggravated in line of duty; and
(C) any period of inactive duty training during which the individual concerned was disabled or died-
(i) from an injury incurred or aggravated in line of duty; or
(ii) from an acute myocardial infarction, a cardiac arrest, or a cerebrovascular accident occurring during such training."