MOSCOW, Jan 21 (Reuters) - U.S. President Barack Obama spoke with his Russian counterpart Vladimir Putin by telephone on Tuesday, and the leaders discussed an internationally sponsored conference on Syria, the Kremlin said in a statement.
The conference in Switzerland is due to start on Jan. 22. The United States and Russia have found themselves taking opposing sides during the three-year conflict in Syria. The Kremlin said the tone of the conversation was "businesslike and constructive".
(Reporting by Thomas Grove; Editing by Mike Collett-White)
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