Indeed. Republicans want to continue the war and Democrats want to end it. It's that simple.
Any other debate is about what the best method to get George Bush to end the war is. I think even now too many Democrats are a bit stupid about the political reality - people hate George Bush and people hate the war - and are scared they're going to be painted as traitors by the wingnut noise machine. But that's about politics and strategy, not the desired result. Democrats want to end the war, Republicans want to continue it. If some Republicans want to defect and join with the Democrats to end the war, good for them, but that doesn't change the fact that Democrats want to end the war and Republicans want to continue it.
Make it partisan. The Republicans are. Let them have their war.