and aui1tance to refugea from Southern Rhodesia and those who are suffering from oppression by the illegal r~glmc of Southern Rhodesia; 16. RequestJ Member States, the United Nation ■ the speciali1,ed aacncies and other international organi: zations in the United Nations system to make an urgent effort to increase their a.uistance to Zambia n11 a matter of priority with a view to helpln1 it solve Much 11pecial cconom1c problems as it may be con­ fronted with arising from the carrying out of the deci11lon1 of the Security Council on this question; 17. Calls upon Member States, in particular those with primary res{'onsibility under the Charter for the maintenance of international peace and security to aasist effectively In the implementation of the meas~res called for by the present resolution; 6 18. Urge3, having regard to the principle stated in Article 2 of the Charter, States not Mcmben of the United Nations to act in acc-0rda11ce with the provisions r,f the present resolution; i 9. CallJ upon Member States !o report to the Secretary-General by 1 June 1970 on the measures t1ken to implement the present resolution; 20. Requests the Secretary-General to report to the Security Council on the progress of the implementa­ tion of the present resolution, the first report to be submitted no later than 1 July 1970; 21. Decides that the Committee of the Security Council ~stablisbcd in pursuance of resolution 2.53 ( 1968), in accordance with ruk 28 of the provisional rules of procedure of the Cour.cil, shall be entrusted with the responsibility of: (a) Examining such reports on the implementation of the present resolution as will be submitted by the Secretary-General; (b) Seeking from Member States such further in­ formation regarding the effective implementation of the provisions laid down in the present resolution as 