The base was inaugurated on Friday by Prime Minister Philemon Yang in Douala.
The standby force is expected to maintain peace in the continent.
Africa has in the past relied mostly on external forces, especially from the UN, to handle its internal crises.
These foreign forces have often faced criticisms from people who believe that they are out to exploit African virgin resources.
There have also been cases of indecent behaviour from such forces, with several cases of rape reported in places like Mali.