France; after WWII France ATTEMPTED to retain control (war from '46 to '54).
As it is known today, Liberia was not colonized by any European power; it was colonized by the United States of America.
Ethiopia
France and England
The European country that colonized Libya was Italy and in 1947 Italy lost Libya as a result of WWII.
This is when most of the European countries were fighting over power. It was the time where Europeans had invaded and had colonized almost all of Africa, and started to colonized central Asia.
Diem.
France as the former colonial power.
Japan was never colonized by a foreign power.
Several European powers colonized Africa, with the most prominent being Britain, France, Portugal, Belgium, Germany, and Italy. Spain also had a presence in Africa, although less significant compared to the others. Notably, Liberia and Ethiopia were never colonized by European powers, with Liberia established by freed American slaves and Ethiopia successfully resisting colonization during the Scramble for Africa.
France. It ruled there until 1949.
The western power that colonized Nigeria was the British Empire. They mainly wanted to take this area to secure their Nigerian trade interests from other powers like Germany and France.