209.—The persons in this Section mentioned are persons subject to military law as soldiers, and this Act shall apply accordingly to all persons so specified, that is to say:—
(1) All soldiers of the Forces.
(2) All non-commissioned officers and men belonging to the Reserve—
(a) When called for training and exercise; and
(b) When called out for duty in aid of the civil power; and
(c) When called out on permanent service; and
(d) When employed in military service under the orders of an officer of the Forces.