Question

which is the correct order of countries that joined world war 1 following austria-hungarys declaration of war on serbia

Answer 1

Russia, Germany, France,Britain

Answer 2

I've read an article online and these were the dates that came across as important to me so hopefully this will help you out.

• July 28, 1914. Austria-Hungary declares war on Serbia.
• August 1, 1914. Germany Declares War on Russia.
• August 3, 1914. Germany declares war on France.
• August 4, 1914. Britain declares war on Germany.
• August 6, 1914. Austria declares war on Russia.
• August 23, 1914. Japan declares war on Germany.
• August 25, 1914. Austria declares war on Japan.
• April 6, 1917. U.S. declares war on Germany.
• December 7, 1917. U.S. declares war on Austria-Hungary.