TY - BOOK ED - United Nations. Office for Disarmament Afairs. ED - United States. Secretary General. TI - Study on defensive security concepts and policies SN - 9211421977 PY - 1993/// CY - New York : PB - United Nations, KW - Security, International KW - World politics KW - 1945- N1 - At head of title: Office for Disarmament Affairs, Report of the Secr etary-General; Includes bibliographical references : (p. 61-64) ER -