Sfnp July 24 Russian Council of Ministers agrees secret partial mobilisation of the Russian Army and Navy. July 25: Tsar approves Council of Ministers decision and Russia begins partial mobilization of 1.1 million men against the Austrian-Hungarian Empire.[22] July 25: Serbia responds to Austro-Hungarian démarche with less than full acceptance and asks that the Hague Tribunal arbitrate. Austria-Hungary breaks diplomatic relations with Serbia.