The Ethiopians are very proud to this day that they have been continuously independent (with one brief exception) for at least the last millennium. Ethiopia's powerful monarchy, defined borders and almost Western-style government helped it repel all attempts at colonization into the 20th Century. Their perceived advancement may also have softened the "White Man's Burden" dogma that Europeans had a responsibility to bring modernity to the "backward" peoples of the world.
In 1895, Italy attempted an invasion of Ethiopia from its colony in Italian Somaliland (the southern half of modern-day Somalia), but suffered a humiliating defeat at the Battle of Adowa, thus concluding the First Italo-Abyssinian War. Indeed, this was the major motivation for Mussolini's Italy to re-invade Ethiopia just prior to World War II. The second time around, the Italians took no risks, carrying out extensive bombing missions and deploying unprecedented amounts of mustard gas before forcing Emperor Haile Selassie's government into submission with further superior firepower. This resulted in the short-lived Italian East Africa colony, which was disbanded with the end of the Second World War.
Liberia was also never a colony, per se, though it was largely populated by non-Africans. In the 1820s, the American Colonization Society was founded by freed American slaves, who believed that returning to West Africa would give them a greater degree of freedom. The U.S. government was amenable to the idea, and Liberia became an independent state in 1847. Liberia has never been ruled by Europeans, but descendants of African-Americans have traditionally occupied a more privileged class of Liberian society, an issue that persists to the present day.
Russia
Yes. It became a country in 1957 when it became the first african nation to declare independance from European colonization.
Switzerland
Switzerland
Switzerland
Thailand has never been colonized by any nation.
Liberia
Switzerland did not colonise Africa.
Ethiopia.
Most of Africa is under European control, not just one African Nation. By 1900, 90% of Africa was under European control.
Liberia.
The American Colonization Society