He made the final decision only after telephone calls with President Vladimir V. Putin of Russia and the Chancellor Angela Merkel of Germany led him to conclude that if Tehran refused to suspend its enrichment of uranium , or later dragged its feet , they would support an escalating series of sanctions against Iran at the United Nations that could lead to a confrontation .
Iran
Tehran
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Iran
Tehran
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Angela Merkel
Germany
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Russia
PERSON
Angela Merkel
LOCATION
Germany
LOCATION
Tehran
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Iran
ORGANIZATION
United Nations