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World War 1 was the war of trenches.They built trenches to try their best to assure their safety. The Trench warfare was the defensive military tactic that was used by both The Triple Entente and The Triple Alliance.

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The importance of World War 1 ended all empires and destroyed all four empires that were in the War. It ended The German,Austro-Hungarian,Ottoman and Romanov Empires.

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The involvement of Australia in World War 1 had The Anzacs land in Gallipoli in 1915.Australia involved themselves in World War 1 due to the Britain and Germany going into war and The prime minister Pledged for full support for Britain2

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The Casualties of World War 1 was around 40 million.There were about 20 million deaths and 21 million wounded people/ civilians.The Total number of all the deaths during World War 1 was 9.7 million military personnel and 10 million civilians.

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1. It allowed The United States of America to rise to the be the leading economic power.

2. It destroyed and had an end to all empires that were created

3. Old countries were abolished