national governments became preoccupied with domestic problems, the political aim of federation tended to be diluted despite the fact that the usefulness of existing federal arrangements have assured them an indefinite tenure. A study of the impact of internal developments on the federal intentions and capabilities of the individual countries would require an analysis of the great differences between them, ranging from their natural resources to their styles of political and economic development. The approach of each country to its internal crises of penetration, participation, legitimacy, integration and distribution will have important consequences for intra-regional relationships. Thus, important differences in approach to the crisis of penetration and distribution between Tanzania and Kenya on the one hand, and to the crises of legitimacy and identity between Kenya and Uganda on the other, may have far-reaching repercussions on the problem of federation.