'1917:<br />The U.S. declares war on this hyphenated kingdom'
Austria-Hungary
DECEMBER 7: 1917:<br />The U.S. declares war on this hyphenated kingdom
1917:<br />The U.S. declares war on this hyphenated kingdom
1917:<br />The U.S. declares war on this hyphenated kingdom
DECEMBER 7
Austria-Hungary
DECEMBER 7