Depends upon how you define the war. If you say this is a war on terrorism, not much. If you say this is a war on radical Islam, quite a bit.
And if you read certain passages in the Koran, you come to the conclusion that, as the former PM of Singapore put it, as you try to separate radical Islamism from mainstream Islam, like wheat from chaff, you still have to realize they come from the same plant.
The problem is for too many here they don't make the distinction between radical/fundamentalist....etc Islam and and moderate(?)/islam as practiced by 85-90% of the worlds Muslims.
A mutant strain from the recessive gene pool of snake 'religions.' A snake is a snake is a snake even if it smells like a rose at some point in its growth.
Mainstream Islam is just the budding stage of Islam as it morphs into its radical state, from which the true nature of Islam is revealed and comes to fruition. 'Know them by their fruits.'
I don't think you can separate the wheat from the chaff when it's all chaff to begin with.