Here’s part of a report, with questions, conjectures, and comments, about the Libyan rebels’ capture of Tripoli.

It comes from DebkaFile, an Israeli source.

We can’t know how reliable it is, but the questions it asks are interesting:

Muammar Qaddafi’s regime fell in Tripoli just before midnight Sunday, Aug. 22. The rebels advanced in three columns into the heart of the capital after being dropped by NATO ships and helicopters on the Tripoli coast. Except for pockets, government forces did not resist the rebel advance, which stopped short of the Qaddafi compound of Bab al-Aziziyah.

After one of his sons Saif al Islam was reported to be in rebel hands and another, Mohammad, said to have surrendered, Qaddafi’s voice was heard over state television calling on Libyans to rise up and save Tripoli from “the traitors.” Tripoli is now like Baghdad, he said. For now, his whereabouts are unknown.

Government spokesman Moussa Ibrahim said 1,200 people had been killed in the 12 hours of the rebel push towards the capital. As he spoke, Libyan rebels, backed by NATO, seized control of the capital. After holding out for six months, the Qaddafi regime was to all intents and purposes at an end.

Still to be answered are seven questions raised here by DEBKAfile’s analysts:

1. Where are the six government special divisions whose loyalty to the Libyan ruler and his sons was never in question? None of the 15,000 trained government troops were to be seen in the way of the rebel advance into the capital. The mystery might be accounted for by several scenarios: Either these units broke up and scattered or Qaddafi pulled them back into southern Libya to secure the main oil fields. Or, perhaps, government units are staying out of sight and biding their time in order to turn the tables on the triumphant rebels and trap them in a siege. The Libyan army has used this stratagem before.

2. How did the ragtag, squabbling Libyan rebels who were unable to build a coherent army in six months suddenly turn up in Tripoli Sunday looking like an organized military force and using weapons for which they were not known to have received proper training? Did they secretly harbor a non-Libyan hard core of professional soldiers?

3. What happened to the tribes loyal to Qaddafi? Up until last week, they numbered the three largest tribal grouping in the country. Did they suddenly melt away without warning?

4. Does Qaddafi’s fall in Tripoli mean he has lost control of all other parts of Libya, including his strongholds in the center and south?

5. Can the rebels and NATO claim an undisputed victory? Or might not the Libyan ruler, forewarned of NATO’s plan to topple him by Sept. 1, have decided to dodge a crushing blow, cede Tripoli and retire to the Libyan Desert from which to wage war on the new rulers?

6. Can the heavily divided rebels, consisting of at least three militias, put their differences aside and establish a reasonable administration for governing a city of many millions? Their performance in running the rebel stronghold of Benghazi is not reassuring.

7. DEBKAfile’s military and counter-terror sources suggest a hidden meaning in Qaddafi’s comment that Tripoli is now like Baghdad. Is he preparing to collect his family, escape Tripoli and launch a long and bloody guerrilla war like the one Saddam Hussein’s followers waged after the US invasion of 2003 which opened the door of Iraq to al Qaeda?

If that is Qaddafi’s plan, the rebels and their NATO backers, especially Britain and France, will soon find their victory wiped out by violence similar to – or worse than – the troubles the US-led forces have suffered in Iraq and Afghanistan.