Maryland Code, Public Safety § 13-705

(i) the termination of any emergency for which members of the organized militia have been ordered into the active military service of the United States; and

(ii) being relieved from the active military service of the United States.

(2)(i) An officer continues to serve in the organized militia as if the officer's service was uninterrupted.

(ii) An enlisted individual continues to serve in the organized militia until the dates when the individual's enlistment, entered into before the individual's order to active military service of the United States, would have expired if uninterrupted.