War at Sea and the U-boat German campaign.
In February 1915, Germany had already declared the seas around the British Isles a war zone
in which all war vessels would be sunk without warning.
Neutrals would also enter this zone at their own risk.
The German U-boat was used especially in the Atlantic to cut off British-French trade in
In May 1915, the Germans sunk a British liner, the Lusitania which resulted in the loss of 128
This strained relations between Germany and America.
In August 1915, Germany also sank the British steamer, the Arabic which also resulted in the
death of Americans.
In March 1916, German sank the Sussex, which also carried American passengers.
America warned Germany to stop this campaign but Germany refused to take heed.
January 1917, Germany declared unrestricted submarine warfare aimed at attacking
combatant and neutral (non-combatant) ships indiscriminately.
This affected American trade which quickly joined war against Germany.
Germany was also persuading Mexico to attack USA in return for seizure of American territory.
In April 1917, German submarines sank 450 tons of British shipping.
Germany wanted to starve British forces before America could compensate for allies’ loss on
the eastern front.
America joined war on 6 April 1917.
First American troops landed in France in June 1917.
This influenced the war in favour of the allies.
Russia pulled out of the war in the same year after Bolshevik uprising and victory.
List any 5 battles fought during the First World War. (5)
Describe Germany’s U-boat campaign on the western front.(12)
Describe the war at Sea. (12)
Describe the American entrance in the war in 1917? (15)
How far did the war at sea contribute to the defeat of Germany and her allies?