UNITED NATIONS (Reuters) - Russia and the United States put aside bitter differences over Syria this month to strike a deal to remove President Bashar al-Assad's chemical arsenal and avert U.S. military action against him.
But efforts to forge a U.N. Security Council resolution endorsing that plan have run into difficulties due to disagreements between Russia on one side and the United States, Britain and France on the other, U.N. diplomats say.
