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syria × 147united-states × 45
russian-federation × 30
turkey × 24
armed-conflict × 23
international-law × 14
international-relations × 13
middle-east × 13
kurdistan × 12
chemical-weapons × 12
israel × 10
iraq × 10
islamic-state × 10
military × 9
terrorism × 9
civil-war × 9
european-union × 8
united-nations × 8
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iran × 7
geopolitics × 6
immigration × 5
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