Hiw did the mandate system cause conflict ?

The mandate system was a mechanism set up by the League of Nations after WW1, allowing the victorious powers to govern enemy colonies until the natives were fit to rule themselves. The colonies were called 'mandates', while the country ruling it was referred to as the 'mandatary'.

mandate system gave European powers, particularly Britain and France, continued influence over the Middle East. ... In addition, British mishandling of the Palestinian Mandate led to a conflict between Jewish Zionists and Arab nationalists that is still ongoing today.

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where is your diagram?