Sentence:  Suppose two powerful, industrialized countries, called <WSD>Usonia</WSD> and Russonia, compete by mean of capital exports and other forms of "aid" for influence in various underdeveloped countries, typified by Thirdonia. 
Meaning of the word marked with <WSD> tags:  In geopolitical and international economic modeling, a prototype superpower that, in competing with an antagonistic superpower Russonia (the Soviet Union), allows Thirdonia (a hypothetical neutral Third World country) to extract considerable wealth from both.