§ 3924. Forty years or more: Army officers
(a)
Except as provided in section
1186 of this title, a commissioned officer of the Army who has at least 40 years of service computed under section
3926 of this title shall be retired upon his request.
(b)
Any warrant officer of the Army who has at least 40 years of service computed under section
3926
(a) of this title shall be retired upon his request.