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WW1 - Coggle Diagram
WW1
begin with assasination of archduke Frenz Ferdinand
two factions
the central powers
Austria
Ottoman Empire
Germany
Bulgaria
Allied powers
Japan
France
Great Britain
Russia
America
Romania
Italy
Global war
new kind of war
new war technology
machine guns
Airplanes
warships
trenches
protect soldiers
difficult life
from 1914 to 1918