The nations that formally severed diplomatic relations, whether later declaring war or not, are as follows:
Aug. 26, 1914 Austria against Japan
March 16, 1916 Austria against Portugal
July 26, 1914 Austria against Serbia
April 8, 1917 Austria against United States
April 14, 1917 Bolivia against Germany
April 11, 1917 Brazil against Germany
March 14, 1917 China against Germany
Sept. 21, 1917 Costa Rica against Germany
Dec. 7, 1917 Ecuador against Germany
Aug. 13, 1914 Egypt against Germany
Aug. 10, 1914 France against Austria
July 2, 1917 Greece against Austria
July 2, 1917 Greece against Turkey
April 27, 1917 Guatemala against Germany
June 17, 1917 Haiti against Germany
May 17, 1917 Honduras against Germany
May 18, 1917 Nicaragua against Germany
Oct. 6, 1917 Peru against Germany
June 8, 1917 Santo Domingo against Germany
April 20, 1917 Turkey against United States
Feb. 3, 1917 United States against Germany
Oct. 7, 1917 Uruguay against Germany
“He who began a good work in you will carry it on to completion until the day of Christ Jesus.”
– Philippians 1:6