“The twelfth enemy”, illustration from Neuigkeits-Weltblatt, issue of 7 April 1917

Pre-war

1914
Outbreak of the war

1915

1916

1917

1918
End of the war

Post-war

Medium

Partner

Austrian National Library

ÖNB/ANNO

Verwendet bei

Event

USA declares war on the German Empire

The entry into the war of the USA shifted the balance of power in favour of the western powers.

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