This is the timeline for Zeit des Blutes.
June 28-Archduke Franz Ferdinand is assassinated by a Serbian radical.
July 5-Austria demands that Serbia apologize, pay for the funeral of the Archduke, and allow Austria to lead the investigation and execution of the murder.
July 7-Serbia agrees to all the demands of Austria except paying for the funeral. Austria demands that they pay for the funeral or their country will be invaded.
July 12-When Serbia again states that it refuses to pay for the funeral of Archduke Franz Ferdinand, Austria officially declares war on Serbia. The next day, 400,000 Austrian troops are deployed to Serbia. The First Serbian War begins.
July 15-Germany deploys 130,000 men to Serbia to help their Austrian allies.
July 20-The first major battle of the First Serbian War. At Kikinda, 70,000 Austro-German troops defeat the poorly armed Serbian force of 12,000 and kill the entire town's populace of about 30,000.
July 21-After six days of secret talks, Russia announces its willingness to defend its Slavic brethren, Serbia. In turn, Russia declares war on Germany and Austria. They focus their military campaign on Austria, however.
July 25-Germany sends 200,000 men to the Russian border. In addition, 250,000 more German soldiers are put under Austrian command along the Austro-Russian border, as 125,000 more Austrian troops are put into Serbia.
July 26-The Serbians win a major victory at Cacak, where 15,000 Austrians are massacred. The Austrians retreat 20 miles in the next week.
August 3-Russian troops break into Slovakia, but only occupy the region for a few hours before a German counter-offensive breaks their occupation. However, the temporary Russian victory is enough to stir up Slavic revolts against Austria in the area.
August 5-Battles along the Russo-Austrian border leave 20,000 killed or wounded on both sides.
August 6-A Serbian militia of about 40,000 retakes parts of western Serbia.
August 11-The Serbian government agrees to pay for the Archdukes funeral and to award Austria with a few small provinces in a peace treaty, but Austria refuses.
August 14-Germany and Serbia come to a peace agreement. Nothing changes, except German troops are withdrawn from Serbia. However, they just shift to the Russian border, where war is still continuing.
August 17-Austrian forces are again defeated in Serbia. The Serbs receive their first supplies from Russia via a landroute through Romania, which required a hefty tax that funded the improvement of Romania's army.
August 21-22-The only major clash between Germany and Russia in this war occurs in East Prussia, where over 90,000 combined casualties are recorded in two days of bloodshed.
August 22-Russia and Germany come to a peace agreement where nothing changes, except post-war hostilities are heightened.
August 24-A Russo-Serbian army breaks into the southwest corner of Austria.
August 28-31-The Battle of Transylvania. 120,000 Russo-Serbian troops raid the area and destroy villages, and kill 60,000 civilians.
September 9-19-Serious peace talks begin between Austria and its enemies as Serb/Slav revolts begin to stir in Croatia, Slovakia, and Bosnia.
September 20-The Peace of Vienna is signed, which ends the First Serbian War. Serbia pays for the funeral of Archduke Franz Ferdinand, but Slovakia and Bosnia-Herzegovina are given nominal independence and a Slavic baron is put in charge of the area.
November 1-Anti-French rebellions begin in Mauritania.