Final answer:
Britain, Germany, and the United States granted women the right to vote after World War I.
Step-by-step explanation:
The three nations that granted women the right to vote after World War I are:
- Britain: In 1918, Britain extended the right to vote to property-owning women over thirty.
- Germany: German women won the right to vote in 1918, becoming the first country to grant universal adult female suffrage.
- United States: Women won the right to vote in the United States in 1920, as a reward for their war service.