If you mean causes, then secret alliances, nationalism, and problems among the slavic people and their nations.
The main weapons used for world war 1 happen to be the muskets, poisonous gas, airplanes, and sniper rifles
Germany was Britain's main enemy.
The main cause of WW1 was the assassination of Archduke Franz Ferdinand.
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money problems
world war 1
world war 2
If you mean causes, then secret alliances, nationalism, and problems among the slavic people and their nations.
you mum was the reason
World War 1
mostely politcical problems
It was the main cause
they learned not to mess with the Germans
Jake
bad encomny
war world 1 was held