Declaration of war on Germany
- British Empire
- British Raj
- Canadian declaration of war on Germany
- French declaration of war on Germany (1914)
- French declaration of war on Germany (1939)
- German declaration of war against the United States
- Russian declaration of war on Germany (1914)
- United Kingdom declaration of war on Germany (1914)
- United Kingdom declaration of war on Germany (1939)
- United States declaration of war on Germany (1917)
- United States declaration of war on Germany (1941)