Like any war, this one is ultimately about willpower, and America has an advantage in Petraeus, one of the strongest-willed people you could hope to meet.
Yes, the "willpower" of one man is the most important component of any war or battle.
Just ask the Germans at Stalingrad.
By the way, I include just that line. If you have a Patraeus-like iron-will you may be able to read a few more paragraphs of David Ignatius' column. But be forewarned you can literally see this took Ignatius several days to write because he had to stop for a while after every paragraph and masturbate.
If internet pages could stick together, this column would be both less voluminous and more accurate.
In fact, we have an action shot...so to speak (and very briefly NSFW) of David Ignatius writing this column.