Archduke Franz fer heir to the austro-Hungarian empire was assassinated while in serbia. The assassination was planned by a terrorist group called the black hand, but the shooter was identified as Gavrilo Princip.
The Austro-hungarian emperior declared war on Serbia
Because Russia was allied with serbia both countries mobilized armed forces.
Germany declared war on Russia.
Count Johonan Von Bernstroff presented Robert Lansing (us secretary of state) with a note declaring that Germany would restart unrestricted subermine warfare the next day.
The old anti-piracy policy
Wilison decides to arm american navel ships with US navel personel and equipment.
US president Woodrow Wilison goes to congress to request war against Germany.
America declared war on Autria Hungary
War is over
ww1 ended at 11am on this day.
The treaty of St Germain
Ausria signed the treaty of St Germain. Austria's armies were reduced to 30,000 men and they were not allowed to have union with Germany. Austria also lost Czechoslovakia and Serbia to Italy and Austria soon went bankrupt.
Treaty of Neuilly
Bulgaria signed the treaty. Bulgaria lost land to Greece. and they had to pay 90 million in reparations.
The treaty of Trianon
Hungary signed the treaty. Hungary lost Romania and Serbia to Czechoslovakia. Their amries were reduced to 35,000 men.
Treaty of Serves
Turkey signed the treaty of serves. Turkey also lost land to greece and the league of nations took control of Turkey's remaining colonies.