The Israeli Supreme Court has determined that the Hague Conventions (1907), predecessors of Geneva, are Customary International law and obligatory in Israel. The Israeli government has decided "out of its good heart", to apply the Geneva Convention to the West Bank as far as personal matters of the residents are concerned. That's why it agrees to evacuate settlements built on PRIVATE Arab land.
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from the article: What if Israeli forces treated West Bank settlers like Arabs?