Delegates to the United Nations General Assembly April 2, 2013 applaud the passage of the first UN treaty regulating the international arms trade. The UN General Assembly on Tuesday adopted the first-ever treaty to regulate the $80-billion-a-year conventional arms trade. The assembly voted 154-3 for a resolution that will open the treaty for signature from June. Syria, North Korea and Iran -- which had blocked the treaty last week -- voted against it. Russia was among the 23 abstentions.