The USA can not "win" -- only Iraqis can win.
The Kurds have pretty much "won" in Kurdish Iraq.

The Kurds and their rapid development are proof that Bush & Rummy had the right "strategy".

But Arab Sunni Iraqis killing Arab Shia Iraqis is choice made by the Sunnis; and increasingly the Shia.  The USA military can NOT investigate, arrest, and bring to justice the Sunni murderers -- so the Shia are grouping into death squads to do it.  Death squad justice is better than none.

The S. Viet were corrupt, incompetent, and cowardly -- all good reasons for the Dems elected in 1974 to cut aid.
But the S. Viet support for human rights was much BETTER than the N. Viet who then violated their '73 signed Peace Accords and attacked.

The US should be pushing internet availability of Iraqi gov't expenses to fight corruption; continue training the Iraqi forces, but with the BEST US troops, not the "B-teams" of reserves; and the US should continue to support those Iraqi forces who DO show up, and DO fight (and are not cowards).

Probably would be good to have bigger US provided cash bonuses to Iraqi Army units who perform well.  The Iraqi democracy victory depends on them.

The mostly Arab deaths in Iraq need to blamed correctly -- on the murderous Sunni and Shia Arabs.  Muslims murdering Muslims, trying to stop democracy.
(See Oliver North on Iraq and Vietnam)