What is the order of countries that joined World War 1 following Austria-Hungary?

Following Austria-Hungary's declaration of war on Serbia on July 28, 1914, the order of countries that joined World War I included Germany, which supported Austria-Hungary, followed by Russia, which mobilized in defense of Serbia. France then entered the war in support of Russia, and the United Kingdom declared war on Germany shortly after, due to Germany's invasion of Belgium. Other countries joined the conflict in the subsequent years, forming the larger alliances of the Allies and Central Powers.