Russia.
The USA fought against Germany, Austria-Hungary, and their allies in World War 1.
Austria/hungary and japan
The Slavic people were the same ethnic group as the Russians, so they wanted to support them against Austria-Hungary, whom Russia was fighting land for.
it has permitted the criminal machinations of various societies and associations directed against the monarchy,and has tolerated unrestrained language on the part of the press. It = Austria-Hungary Austria-Hungary claimed that Serbia's government wasn't strict enough; that they weren't restricting the press and were tolerating the crimes of movements that were against the Monarchy.
German support for any action Austria-Hungary took against Serbia
German support for any action Austria-Hungary took against Serbia
Germany in the triple alliance with Austria Hungary against Britain, Russia and France
Germany, Austria-Hungary, Turkey, Bulgaria.
Austria-Hungary is on the continent of Europe.
Austria-Hungary
ANSWER Austria-Hungary