Answer:
In World War 1, the major Allied powers were France, Russia, and the United Kingdom, while the Central Powers were Germany, Austria-Hungary, and the Ottoman Empire.
In World War 2, the major Allied powers were the United States, Soviet Union, and the United Kingdom, while the Axis powers were Germany, Italy, and Japan.
The largest number of casualties in WWI were suffered by Russia. In World War 2, the Soviet Union suffered the largest number of casualties, with estimates ranging from 26 million to over 30 million people killed.
Step-by-step explanation: