To refrain from the threat or use of force and to abide in their relations with other States by the principles of sovereign equality, territorial integrity, inviolability of international frontiers, inadmissibility of the acquisition and occupation of the territories of other States by force, settlement of disputes-including frontier disputes-strictly by peaceful means, non-intervention and non-interference in the internal affairs of other States, respect for human rights, respect for the right of all nations to choose freely their social, political and economic systems and to develop their external relations in the way they deem be.t for the interest of their respective peoples in conformity with the Charter of the United Nations;