During WW2, all the major countries involved used submarines.
230
The US, Russia, Great Britain, France, China and (recently) India have nuclear submarines.
one
Germany called there submarines U boats
8
Three countries in Africa own and operate submarines.AlgeriaEgyptSouth Africa
The existence of submarines forced other countries to develop anti-submarine weapons and detection systems.
About 2,100 by many different countries.
The largest of all African Countries is Algeria.
There are 54 countries in the African Union. The African Union was preceded by the Organisation of African Unity.
There are several central African countries. Some of the countries are Angola, Chad, and Rugabano.