That's the way I work and one day I won't have the energy to do it, so I think it's always good to make the most of your life and living as much as possible.
The narration, in fact, doubles the drama with a commentary without which no mise en scene would be possible.
As many people have chronicled, the decision to fight in Vietnam was a years-long accretion of step-by-step choices, each of which could be rationalized at the time. Invading Iraq was an unforced, unnecessary decision to risk everything on a 'war of choice' whose costs we are still paying.