The British Naval blockade of German ports was a crucial factor in the Allied victory over Germany. Despite losing many ships during 1915, the purpose of the blockade was to prevent supplies getting through, thereby starving the German people of food, which would then turn them against their government, forcing them to end the war. The blockade would also prevent supplies and food getting to the German troops. In 1916 the Germans tried to destroy the blockade but failed. Whoever won the war at sea won the war as a whole. There were very few battles at sea in World War One. The only major sea battle was the Battle of Jut land. The war at sea was crucial to the outcome of World War One, as the winner would starve the enemy out.
In 1915 the Germans sank the American ship ‘Lusitania’, killing hundreds of Americans. The Germans thought it was carrying supplies and arms for the British. In 1917 the American Army entered the war. Unlike the tired British troops, these hundreds of young, well equipped, well fed and high spirited soldiers were a vital part in breaking the stalemate. When they came to the Western Front, the tired German soldiers were faced with vibrant young troops who demolished the poorly supplied German army. They helped break the stalemate because they brought a new lease of life to the Allied forces that now outnumbered the Germans.
The German offensive of 1918 was crucial to the outcome of the war. The Russians who had lost millions of soldiers, turned against their leaders, forcing Russia to leave the war. The Germans had to launch an offensive against the growing Allied army. They transferred troops from the east to the west to try to stop the Allies constant attacks in a single place. It was effective as the Germans broke through the Allied lines. The attack had gone well, however, the Allies held their nerve; they retreated so as to spread the Germans out. The Germans, unlike 1914, had no reserves and were badly fed and disciplined.
Between May and August of 1918 the Germans made little progress and defeat was inevitable. The Allies who had supplies and food managed to counter attack. On the 8th August 1918 the Allies reached the Hinderburg Line. On the 11th November the Armistice (ceasefire) was called and the Great War was finally over.
All of these factors played a role in breaking the stalemate on the Western Front. The use of planes and tanks helped break German defence lines. The influx of fresh American troops proved too much for the tired German troops. The war at sea played a vital role as it prevented supplies getting through the German troops and people.
They are all interlinked in breaking the Stalemate on the Western Front.