UNITED NATIONS (AP) — The U.N. General Assembly approved an Arab-backed resolution Wednesday calling for a political transition in Syria, but more than 70 countries refused to vote “yes” because of its support for the main opposition group and fears the resolution could torpedo a new U.S.-Russia effort to end the escalating conflict.

The United States signed on as a co-sponsor of the resolution, saying it would promote a political solution. But key Syrian ally Russia urged a “no” vote, saying it was “counterproductive and irresponsible” to promote a one-sided resolution when Moscow and Washington are trying to get the Syrian government and opposition to agree to negotiations.