It's a very loose term, seeing as it encompasses both shia militias, liek the Mahdi Army, and Sunni ones.
Now this is plausible but i suspect that it is too much of a burden of necessity to call it in general terms of religiously motivated groups as the criteria of being a central reason for the broad organization to exist.Most are,i believe,are merely militias with some street-demagouge which are not in the sense Nationalistic in a sense but fragmentary due to that militias consist of many different groups that defend their sphere of influences.Call it the tribal factions;which is militias with thier own street-demagouges or no demagouges.
Something like that. But the Mahdi Army is quite influential, as al-Sadr is a leading iraqi politician.
This is surely the most sophisticated bunch of your list and frankly that in recent days there are movement in the Iraqi government to lift the ban of these party members in thier government due to the fact that the strategy of disassembly of the Bathists loyalist did not work.
Strangely enough, Iraqi Militias are a lot more sophisticted than the press gives them credit for.
They're quite often young guys with a good grasp on electronics, who use computers, mobile phones, and shaped charges with the greatest of ease.
Do you have anymore info on this?
http://en.wikipedia.org/wiki/Iraq_insurgency
"Patriotic Communists (who have split from the official Iraqi Communist Party and other leftists"
They're quite a minority, however.
Not necessarily so due to the nature of secrecies and media coverage(since it is Al-Jazerra that does the most coverage and magnification of these radical organzation such as Al-queda and others).
We went over this last thread, when I proved to you foreign fighters in Iraq have never numbered over 3000.
This is more complex and sometimes i think that using the word 'insurgents' is too narrow of an application to define who is making the attack against the Coalition and the Iraqi Security Forces and others that are the targets.
As a general rule of thumb, the majority of Islamists believe that civilians are not targets if they are Iraqi, but foreigners are.
I don't think it is 'lost' but something of a temporary 'limbo' till security is better for in order to rebuild and provide the necessary institutions(schools,courts,universities,and utilities that can provide better standard of living) that can give them a chance to build a culture of citizens that in turn can be beneficial for the International community.
A fairly nationalist country has been more or less wiped from the earth, and I think they want it back, without help from outside.