(a)
(1) Officers of the Army National Guard of the United States who are not on active duty—
(A)
may order members of the Army National Guard of the United States to active duty for training under section 12301(d) of this title; and
(2) Officers of the Air National Guard of the United States who are not on active duty—
(A)
may order members of the Air National Guard of the United States to active duty for training under section 12301(d) of this title; and
(b) Officers of the Army National Guard of the United States or the Air National Guard of the United States who are not on active duty—