Russia's President Vladimir Putin attends a joint news conference with Britain's Prime Minister David Cameron in 10 Downing StreetBy using Khaled Yacoub Oweis and Alexei Anishchuk AMMAN/LONDON (Reuters) – Russian President Vladimir Putin, arriving in Britain in advance of an international summit set to be dominated by way of disagreement over the U.S. resolution to send weapons to Syria's rebels, mentioned the West must now not arm warring parties who consume human flesh. In Syria, rebels fought again on Sunday towards forces of President Bashar al-Assad and his Lebanese Hezbollah allies near Aleppo, where Assad has announced a marketing campaign to recapture the rebel-held north after seizing a strategic city this month. …