Its not a matter of underestimating the enemy. Clearly, we can bomb them from remote and there is absolutely jack they can do about it. Obviously, we could invade and conquer their country in a matter of weeks, easily. It would be like butter to cut through their defenses and destroy anything we want.

Now, occupying the territory is a whole different thing as is trying to civilize savages and build a real democratic government. We all know that seemingly except the liberal islamomoron appeasers.

__________________
Qur'an:8:39 Fight them until all opposition ends and all submit to Allah.
Qur'an:8:67 It is not fitting for any prophet to have prisoners until he has made a great slaughter in the land.
Qur'an 8:12 I will terrorize the unbelievers...Strike off their heads and cut off each of their fingers and toes.
Qur'an 9:5 Fight and kill the disbelievers wherever you find them, take them captive, torture them, and lie in wait and ambush them using every stratagem of war.