I don't get it about all this no fly and military stuff.

Do the math. Two million or so folks in Tripoli, a large metropolitan city which has no indigenous food/water supply.

Two million people need how much food, water, medical supplies, on a daily basis, to be happy and productive?

If ports are open in the east (where the oil is anyway) and closed in the west due to instability (and increasing lack of oil to operate things), how long does it take for events to play out?

International assets are already frozen, and could, for example, be earmarked for humanitarian relief to the east (but not to the west), so trade, and especially new weapons, will be chaotic at best, begging the question of whether even a naval blockade is critical. If no access to global credit, what shipments need to be intercepted?

At the same time, a limited, but well distributed, supply of hand-held devices (and IEDs) can stop the biggest of armies/air forces in its tracks, as we know. Chasing adequately armed, but highly dispersed, local opponents can break the back of any army not highly motivated, equipped and civilian-supported.

Didn't we learn all this stuff already?

Where are the main water/waste water supply systems feeding Tripoli?

Game, set, match.