Rebels battling the Syrian army and its allies south of Aleppo say they have received new supplies of U.S.-made anti-tank missiles from states that oppose President Bashar al-Assad since a major government offensive began there on Friday.br A number of rebel groups vetted by states opposed to Assad have been supplied with weapons via Turkey, part of a program supported by the United States and which has in some cases included military training by the Central Intelligence Agency.br Rami Abdulrahman, director of the British-based Syrian Observatory for Human Rights which monitors the Syrian conflict, said rebels had hit at least 11 army vehicles with guided anti-tank missiles near Aleppo since Friday.