<P> Both the German Empire and the United Kingdom relied heavily on imports to feed their population and supply their war industry . Imports of foodstuffs and war material of all European belligerents came primarily from the Americas and had to be shipped across the Atlantic Ocean , thus Britain and Germany both aimed to blockade each other . The British had the Royal Navy which was superior in numbers and could operate throughout the British Empire , while the German Kaiserliche Marine surface fleet was mainly restricted to the German Bight , and used commerce raiders and unrestricted submarine warfare to operate elsewhere . </P>
<P> Both the German Empire and the United Kingdom relied heavily on imports to feed their population and supply their war industry . Imports of foodstuffs and war material of all European belligerents came primarily from the Americas and had to be shipped across the Atlantic Ocean , thus Britain and Germany both aimed to blockade each other . The British had the Royal Navy which was superior in numbers and could operate throughout the British Empire , while the German Kaiserliche Marine surface fleet was mainly restricted to the German Bight , and used commerce raiders and unrestricted submarine warfare to operate elsewhere . </P>
what did germany do to try to prevent goods from reaching great britain
what did germany do to try to prevent goods from reaching great britain
commerce raiders unrestricted submarine warfare
commerce raiders unrestricted submarine warfare