Conflict: a serious disagreement or argument, typically a protracted one
Cooperation: the process of working together to the same end
Politics: activities associated with governance of a country or area, especially the debate between parties having power
Economics: the branch of knowledge concerned with the production, consumption, and transfer of wealth
Geography: the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these
Ethnicity/Race/Gender: categories of identity that can influence social positions and interactions
Culture: the arts and other manifestations of human intellectual achievement regarded collectively