Libya and Ethiopia
Liberia (U.S. Sphere of Influence) and Ethiopia (Attempt at Westernization).
Yemen was two countries until 1990.
There was more than two countries left in the world after WW1.
LATE SEPTEMBER 1914-1918 EARLY NOVEMBER and 1939-1945 HOLOCAUST 1933-1945
Libya and Ethiopia
Germany and Britain were the two countries that spent more on Armaments in 1914.
Japan and china were the two countries who remained isolated during the age of exploration.
The two African countries that remained independent are Liberia and Ethiopia.
England and Portugal remained undefeated by Napoleon.
The only two truly independent countries in Africa are South Africa and Ethiopia. However, Ethiopia in the one that is considered to be absolutely independent as it was never colonized.
Retain their independence
Sweden Norway
In 1914 there were sixty two completely sovereign countries in the world. In addition to these were many non-sovereign territories, some of which would later become countries.
Liberia (U.S. Sphere of Influence) and Ethiopia (Attempt at Westernization).
Switzerland remained neutral because it was largely inaccessible - very difficult to attack and occupy. Netherlands and Belgium remained neutral for the opposite reason - they were too accessible from either side.
The two countries that benefited the most from World War I was Great Britain and the United States. While losses were severe, both of these nations remained nearly intact.