History of Europe

What neutral countries later joined the Allies in World War 1?

* Italy: Italy joined the Allies in 1915, after secret negotiations with Britain, France, and Russia. Italy was enticed by the promise of territorial gains, including the South Tyrol, Istria, and Dalmatia.

* Romania: Romania joined the Allies in 1916, after being promised Transylvania by Russia.

* United States: The United States joined the Allies in 1917, after the sinking of the Lusitania and other German attacks on American ships and citizens.

* Brazil: Brazil joined the Allies in 1917, after several German merchant ships were sunk in Brazilian waters.

* China: China joined the Allies in 1917, after Germany refused to recognize Chinese sovereignty over Manchuria.