Wikipedia
Third-Worldism is a tendency to regard the division between First World developed countries and Third World developing countries as being of primary political importance. Third-Worldism supports Third World nations and national liberation movements against Western nations and their proxies.
Maoism (Third Worldism) is a Marxist Third-Worldist trend put forward by organizations such as the Revolutionary Anti-Imperialist Movement, and the Maoist Internationalist Ministry of Prisons. MIM Prisons rejects the label, however, considering their trend to be "MIM Thought". As of 2015, RAIM has begun to distance itself from Maoism, considering its ideological trend to be simply Third-Worldist, stressing the unity between members of many different communist ideologies, not only Maoism–Third-Worldism, but also e.g. Marxism–Leninism–Third-Worldism.