or aggravated in line of duty . 38 U . S . C . A . § 101 ( 21 ) , ( 24 ) ( West 2014 ) ; 38 C . F . R . § 3 . 6 ( a ) , ( d ) ( 2015 ) . ACDUTRA includes full - time duty performed for training purposes by members of the National Guard of any state . 38 U . S . C . A . § § 101 ( 22 ) ; 38 C . F . R . § 3 . 6 ( c ) ( 3 ) . Thus , service connection may be granted for disability resulting from disease or injury incurred or aggravated while performing ACDUTRA , or