I'm kind of shocked at the level of ignorance... in the sense of, someone talking about something of which they have little actual knowledge... in this thread.
Didn't realize the Mujihadeen squared off against the Mongols.
Didn't realize that my point was invalid if it didn't apply to every single attack in history... jeez.
Ah, yes, the Mongols, who destroyed the irrigation system of the country, turning it into the desert wasteland state from which it has never recovered.
The following have faced the mujihadeen... note, they are are in the more recent centuries, which is kind of more indicative than ancient history.
Persians, Brits (thrice), Russia, USA...
That's a pretty big, recent history of insurgency.
It's a terrible hell hole of a country now - any country would be after undergoing 25+ years of civil war.
The narrative of Afghanistan as some unconquerable land is hugely overstated. Even the Mujahideen were often foreigners, fueled by foreign aid. The Taliban themselves were mostly a Pakistani organization: their funding was largely Pakistani, and after 1996 around half of their soldiers were Pakistani nationals (some of them active in the Pakistani armed forces), a substantial amount were Arabian, mostly Saudi. More foreigners than Afghans in the Taliban for sure.
The country has been a dump since the Mongols.
The Mujihadeen were never foreign until the USSR invasion... they were always local versus Persia and Britain.
Now, yes, you are correct, foreigners make up the bulk of the mujihadeen...
Except this doesn't show up. It is largely one foreign power conquers the region and is then driven out by the next foreign power conquering the region not some local insurrection.
Wrong... Try again.
The locals overthrew the Persians... push the Brits away... and against the USSR and USA, greatly assists foreign fighters.
Really I don't think ISAF is all that far away from succeeding in Afghanistan. If you believe the people who've actually been there, the population is behind the ISAFs, predicated on there being some day to day security in the country. They won't back a horse they don't see as winning.
The only hardcore resistance stems from reactionary Pashtun groups in the South and South-East. But the rest of the country knows what kind of country they like to run.
I've actually been there, worked with setting the country "straight", and I think you have no clue what you are talking about.
The problem with Afghanistan... terrain. The idea the west is pushing is a centralized government. To have a centralized government, said government must have the ability to project its power in a meaningful way in all areas of the country. Enter the mountains. The only way to do that is to:
1) Have mobile forces (using helicopters)
2) Have a lot of forces stationed throughout the country
The problem with 1, funding, the problem with 2, funding. 2 is especially hairy because local guerilla raids can decimate 2 by simply massing, attacking, dissolving, rinsing, repeating...
Most of the country doesn't know what type of country they'd like to run. Most of the country barely knows where next week's food is coming from. They want to not be in the center of violence, and whoever brings them some level of stability, they back... if that is the taliban or a central government or whomever... They don't care. They are focusing on way lower levels of Maslow's Heirarchy of Need.