Answer:
Belgium AND United States of America
Step-by-step explanation:
Belgium controlled two colonies during its history, the Belgian Congo (modern DRC) from 1908 to 1960, and Ruanda-Urundi (Rwanda and Burundi) from 1922 to 1962. It also had a small concession in China, and was a co-administrator of the Tangier International Zone in Morocco.
Roughly 98% of Belgium's overseas territory was just one colony (about 76 times larger than Belgium itself) — known as the Belgian Congo. This had originated as the personal property of the country's king, Leopold II, rather than being gained through the political or military action of the Belgian state. Sovereignty was transferred to Belgium in 1908.
The USA
"The main period of decolonisation in Africa began after World War II. Growing independence movements, indigenous political parties and trade unions coupled with pressure from within the imperialist powers and from the United States and the Soviet Union ensured the decolonisation of the majority of the continent by 1980. While some areas, in particular, South Africa, & Namibia retain a large population of European descent, only the Spanish enclaves of Ceuta and Melilla and the islands of Réunion and Mayotte, the Canary Islands, and Madeira remain under European control, the latter two of which were never part of any African polity and have an overwhelmingly European population."
Only mentioned once on the Wikipedia page for African colonization, therefore, we can deduce that they also did not colonize African.