Here is John Glaser's wrap-up of current US operations in Africa, the vast majority of which have been initiated under the Obama administration:
The United States is in the midst of fighting a new war in Africa, following familiar foreign policy conventions applied previously, particularly in Latin America and the Middle East, to ruinous results.
The strategy is characterized by military aid to and reliance on brutish, undemocratic regimes, proxy militias, and targeted special operations as opposed to invasion and occupation. All of this is done without the consent of Congress and for the most part in secret.