Answer :
The 1917 Balfour Declaration supported establishing in Palestine " a home for jewish peopel", conflict erupted between resident Arabs and Jews, who began moving there.
In 1912 Sun Yixian resigned in favor of General Yuan Shikai. Yuan tried unsuccessfully to set up a new ruling dynasty with himself as emperor. After Yuan dies, local warloards battled for control, the economy collapsed and famine spread.
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