The forces opposing the US seem to be made up of Saddam loyalists and Islamic militants.
Saddam is palatable to the Russians and it was partly because of oil deals made with him that Moscow was so opposed to the war. But it's still
unlikely that he is personally directing attacks against US forces or that he is in contact with Russia. It is also unlikely, that even if the US
fails in it's plans for Iraq, Saddam will ever be returned to power and it's therefore doubtful that the Russians have anything to gain by aiding
him.
The Islamic militants are just as dangerous to Russia as they are to the US. Moscow has been on the recieving end of terrorism for a few years now and
has no love for the extremists and although their are instances in the past of the superpowers arming and employing groups who would later oppose
them, I feel that the lesson has been learned the hard way and that this policy is not a favourable one.
It's likely that any outside help would come from other Islamic countries. Although they daren't show open support for fear of US retaliation, some
of them don't seem to be stopping their citizens from crossing into Iraq to take part in a Jihad. Syria and Iran would seem to be the main culprits
but there are also instances of Muslims leaving European countries and taking up arms as in Afghanistan.
There are a third group of people who may be carrying on the fight and they are probably the most dangerous to the US. These are the people who simply
regard Iraq as thier home and their territory which no outsider has a right to set foot in. I guess you could class these people as patriots. Amongst
this group you will also have people who are out for vengeance due to family members who were killed during the invasion.
Revenge and patriotism are two very hard enemies to fight.

