The last Australian troops were evacuated from Gallipoli during World War I.
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The US declared war against Germany and its Central Powers Alliance in World War I.
President Woodrow Wilson issued a Proclamation of Neutrality.
During World War I, Japan officially declared war on Germany.
Third Battle of Ypres begins in Flanders
The Treaty of Lausanne is signed between Turkey and the countries that formed the Allied Powers in the First World War.