After negotiation with the President of the Commonwealth of the Philippines, or the President of the Filipino Republic, the President of the United States is authorized by such means as he finds appropriate to withhold or to acquire and to retain such bases, necessary appurtenances to such bases, and the rights incident thereto, in addition to any provided for by the Act of March 24, 1934, as he may deem necessary for the mutual protection of the Philippine Islands and of the United States.
22 U.S. Code § 1392 - Acquisition of military and naval bases by United States
Act of March 24, 1934, as amended, referred to in text, is act Mar. 24, 1934, ch. 84, 48 Stat. 456, as amended, which enacted sections 1281a, 1391, 1393 to 1395 of this title, and section 1248 of Title 48, Territories and Insular Possessions, amended sections 1231 to 1234, 1237, 1238, 1239, 1241 to 1243, 1245, and 1247 of Title 48, and enacted a provision set out as a note under section 1391 of this title. For complete classification of this Act to the Code, see Tables.
Philippine Islands granted independence by Proc. No. 2695, which is set out as a note under section 1394 of this title, and they now constitute a republic.