US Secretary of State John Kerry seeks to rally EU support for military strikes against Syria after a G20 summit failed to resolve bitter divisions between Washington and Moscow.<br /><br />Kerry presses the case for punitive action against Syria after what the United States says was a chemical weapons attack by the regime of President Bashar al-Assad near Damascus, despite a lingering deep split among global powers.<br /><br />Al Jazeera's Gerald Tan reports.