Syria's Civil War Goes Multi-national

What started as an uprising against Syrian President Bashar al-Assad has become more complicated than ever. Russia and the US are dropping bombs on the same country, and although both are opposed to ISIS, they are on different sides of the civil war. At the same time, Iraq is inviting Russia to join the US by dropping bombs there. France is part of the American coalition, and Iranian troops have been sent to Syria, joining Hezbollah forces from Lebanon. And President Obama is accused of creating a Middle-East vacuum for President Putin to fill.  We try to connect the dots.