'Catastrophe' if Congress does not back military action

Henry Kissinger, former US Secretary of State Credit: Gero Breloer/DPA/Press Association Images

Former US Secretary of State Henry Kissinger said it would be a "catastrophe" if Congress did not back military action and "undermine the American position in the world" after Mr Obama made the use of chemical weapons a "red line" issue.

He told BBC Radio 4's Today programme action should be more than a "shot across the bows" but not go as far as intervening to influence the result of the civil war.