joining me now from washington, d.c., is david kilcullen, one of the country's leading experts. he served as an advisor to general david petraeus and was one of the leading architects of the u.s. troop surge in iraq. david, describe what the effect in strategic terms would be if, as president obama suggested, these airstrikes will just continue for weeks, perhaps even longer. >> well, i think the most important strategic effect is that it changes the calculus for isis. if we think about how the predecessor to isis, al qaeda and iraq operated during the iraq war, it was covert, underground, guerrilla warfare strategy. civilian clothes, operating at night, bombings, killings, so on. that couldn't be more different from how isis is operating in the blitz that it's been operating in iraq for the last several months. it's operating in the daylight, tanks, rumors of helicopters, people swarming across the desert in what we call technicals, pickup trucks with heavy weapons. it's operating in a much more conventional state-like sort of light cavalry tactical framework. that works when th