text: . i!+smUm 46: Usaatmn ef _all nuclear-test exolosu A/45/314 - Letter dated 15 June 1990 from the representatives of Chile, Colombia, Ecuador and Peru to the United Nations addressed to the Secretary-General, transmitting the text of the statement issued by the General Secretariat of the Permanent Commission for the South Pacific on 3 June 1990 A/45/339 - Letter dated 9 July 1990 from the representatives of Chile, Colombia, Ecuador and Peru to the United Nations addressed to the Secretary-General, transmitting the text of the statement issued by the ticneral Secretariat of the Permanent Commission for the South Pacific on 27 June 1990 A/45/352 - Letter dated 11 July 1990 from the representatives of Chile, Colombia, Ecuador and Peru to the United Nations addressed to the Secretary-General, transmitting the text of the statement issued by the General Secretariat of the Permanent Commission for the South Pacific on 6 July 1990 A/C.l/45/SNF/l English Page 3 A/45/456 - Letter dated 27 Auqust 1990 from the Permanent Representative of Vanuatu to the United Nations addressed to the Secretary-General, transmitting the text of the final communique of the Twenty-r'irst South Pacific Forum, held at Port Vila, Vanuatu, from 32 July to 1 August 1990 Acqenda item 47: Amendment of the Treaty Banninampon Tests in the Atmosvhere, in Outer Snace and under Water A n ’ m4: Ur n n < nuclear-test- r A/45/314 - Letter dated 15 June 1990 from the representatives of Chile, Colombia, Ecuador and Peru to the United Nations addressed to the Secretary-General, transmitting tha text of the statement issued by the General Secretariat of the Permanent Commission for the South Pacific on 3 June 1990 A/45/339 - Letter 0ated 9 July 1990 from the representatives of Chile, Colombia, Ecuador and Peru to the United Nations addressed to the Secretary-General, 
analysis: The text appears to be related to international relations and diplomatic communications, specifically concerning nuclear testing and its effects on the South Pacific region. The documents mentioned are letters from representatives of various countries to the United Nations, transmitting statements and communiques from regional organizations. This suggests that the topic is related to international cooperation and treaty-making, rather than economic development or scientific research.