Question: "Third World" referred to countries that remained non-aligned with either NATO or a grouping of states aligned with who? 
Sentence (from "New International Economic Order"): The New International Economic Order (NIEO) was a set of proposals put forward during the 1970s by some developing countries through the United Nations Conference on Trade and Development to promote their interests by improving their terms of trade, increasing development assistance, developed-country tariff reductions, and other means.
Relevant evidence: No