05 November 1916
Act of 5 November 1916
The Act of 5 November 1916 where the German and Austrian emperors promised an independent Kingdom of Poland was the first sign that the Polish case became an international matter during the WWI. Polish diplomats, with Roman Dmowski as the most prominent, were active making the Triple Entente see the establishment of a Polish state as necessary. In January 1918, US president Wilson said that an independent Polish state should be set up and have sea access, while France, the UK and Italy agreed.