That is what we are up against.
This was largely true (for the past 3 years)...however al-Qeada in Iraq (Zarqawi) has been decimated over the past 12 months now - There is no longer any systematic plan coming out of Zarqawi and his element....they are merely trying to cause death and destruction with no real purpose.
More and more Iraqi units are coming online each week and success is rampant.
They clearly haven't had the organizational ability they had 12 months ago.
The only massive threats to Iraq at this point is Iran and the US public losing its will.
Because of the political situation in the US the IED will be the insurgency's last method to win the war.