David Wearing : Those to blame for Iraq crisis include ISIS , PM Nouri al-Maliki , Syria 's Bashar al-Assad . ISIS exploited this opening to the full , securing control over territory and oil reserves , and methodically building up its strength in preparation for a dramatic return to Iraq . Comment: Cheney , Wolfowitz and Blair have no right to offer advice on how to deal with the crisis , he adds . Iraq must not endure more U.S. military devastation , Wearing says ; it needs political solution .
David Wearing : Those to blame for Iraq crisis include ISIS , PM Nouri al-Maliki , Syria 's Bashar al-Assad . Comment: Cheney , Wolfowitz and Blair have no right to offer advice on how to deal with the crisis , he adds . Iraq must not endure more U.S. military devastation , Wearing says ; it needs political solution .