text: refused to implement the relevant Security Council resolu- tions on sanctions against Southern Rhodesia but have even worked hand in glove with the Southern Rhodesian author- ities in undermining sanctions against Southern Rhodesia by every means. In covert collusion with Southern Rho- 2 desia, South Africa and Portugal, some big Powers are abetting and supporting them on the one hand, and on the other hand are blatantly violating the relevant Council resolutions and openly undermining sanctions against Southern Rhodesia. Ample evidence can be found in he fact that the United States Government has openly in+ ported chrome and nickel from Southern Rhodesia under the pretext of importing strategic material. After the Council had adopted the resolution on strengthening sanctions against Southern Rhodesia, there occurred the recent incident in which Southern Rhodesian authorities imported three Boeing 707 jet aircraft from a so.called “unidentified source”. This is all the more a gross mockery of the Council resolution. 11. Last year, in response to the initiative of African countries, the Security Council adopted resolution 320 (1972), which requests the Security Council Com- mittee established in pursuance of resolution 253 (1968) concerning the question of Southern Rhodesia “to undertake, as a matter of urgency, consideration of the type of action which could be taken in view of the open and persistent refusal of South Africa and Portugal to implement sanctions against the illegal regime in Southern Rhodesia”. Thereafter, three African Member States, the Sudan, Guinea and Kenya, put forward a series of concrete proposals in the spirit of the aforementioned resolution in that Committee. The Chinese delegation supported the initiatives of the African countries, although it considered at the same time that the proposals were only the minimum and preliminary measures to strengthen sanctions against Southern Rhodesia, which were not completely satisfac- 
analysis: The text appears to be discussing political and diplomatic issues related to the economic sanctions imposed on Southern Rhodesia (now Zimbabwe). The language used is formal and official, suggesting that it may be a document from the United Nations or a similar international organization. The text mentions specific resolutions and actions taken by countries, which implies that it is focused on international relations and diplomacy rather than economic development or humanitarian aid.