Did you hear that Prince Archduke Franz Ferdinand of Austria was assassinated in Bosnia?
Yes. And apparently he was shot by Serbian nationalist Gavrilo Princip.
We are the Germans on the Western Front fighting against the French
Yes. And apparently, the people were discontent because they had high taxes, bad working conditions, and political rights. Also, Czar Nicholas II couldn't manage the problems in the country, so Vladimir Lenin led a revolution to change everything.
Did you hear that Czar Nicholas II and his family were executed because he didn't know how to manage the discontent of his people?
This is the Lusitania. It was sunk by a German U-boat after the US told the Germans not to sink any more passenger boats. This was the last straw for the US. So, they finally declared war on Germany.
The Germans surrendered and they signed the Treaty of Armistice.