Jeff does an in-depth analysis of BattleStar Galactica, and find that it is not an allegory for Vichy France, the Iraqi insurgency, or the defeat of Xerxes at the hands of the Greeks:
It’s just not that simple, people.
And that’s really the whole point. Life is complicated. In an extreme situation — such as living under military occupation — it gets harder and harder to hold on to our morality. Friday night one character rejected suicide bombing as a tactic saying “There are some things you don’t do, even in war.” Another character argued passionately against the use of mass execution. The fact that these characters were on opposite sides of the war — one was a human, one a Cylon — should tell you something.
And the mailbag comment is the best, man:
…think of it as a cautionary tale about what life under an Islamist occupation would be like.