The United States Air Force marks seventy-three years of service.

Each Friday, I look at what the presidential challengers are saying about foreign policy. 

The United States Air Force marks seventy-two years of service.

Nigeria and South Africa have been the two African countries of greatest strategic importance to the United States. They are the two largest economies on the continent, and a major venue for U.S. investment. Historically, the United States and Nigeria have cooperated on African issues of mutual concern.