Section 1
SECTION 1. Retirement from the Armed Forces under this Act is optional or compulsory, and the ages and periods of service for eligibility therefor are fixed as follows: (a) Optional: Upon the completion of at least twenty years of continuous satisfactory active service an officer or enlisted man may, at his own request and with the approval of the President, be retired from active service. (b) Compulsory: Upon the completion of at least thirty years of continuous satisfactory active service or upon attaining sixty years of age with a minimum of fifteen years continuous active service, retirement shall be compulsory, unless the continued service of the officer or enlisted man is, in the opinion of the President, required for the good of the service.