I don’t know enough and the more I read, the more it becomes painfully obvious. But besides nationalism and interventionism there is also the influence on religious ideologies.
I think I should separate Mujahids and Taliban clearly because this the left vs right in the Islamic militant group.
Before the 60s, King Zahir Shah played a significant role in Afghanistan. The religious faith in Afghanistan was rather diverse, a reflection of the country's decentralized and locally rooted political geography. There’s evidence of ancient influence of Buddhism, Greek, mystics, saints, Sikhs, and Islamic warriors.
During the late 60s, there was a rise of Marxism - Cold war started seeping in - and it was a fight between embracing Marxism and Islamic ideologies. Kabul's universities were marked by intense political activity and a clash of ideologies.
Secret Marxist book clubs and Islamist societies operated within the city's academic institutions.
Afghanistan's monarchy was in decline; hence the political atmosphere was stressed up and urgent. The question of whether Afghanistan would adopt a Marxist or Islamic, secular, or religious, modern or traditional path became a constant subject of debate among university professors and students.
Massoud - who eventually became the leader of Mujahid - acquired a different, more militant form of the Islamic faith compared to his father during his time at Kabul Polytechnic Institute This new Islam faith is said to have conspiratorial and potentially violent aspects.
The influence of this form of Islam came through Afghan junior professors who had studied abroad such as at Al-Azhar University in Cairo, where they were exposed to radical Egyptian Islamist ideas. When they returned to Kabul in the mid-1960s, these professors introduced these radical ideas into their teaching.
This shift in the Islamic faith of some Afghan intellectuals and students - changed the Islam ideological landscape of the country during that period (and globally I would think - because even Islam in my country, before the 70s, was very moderate - the old movies has so many parties and dancing and fun, not controlled by religious police)
But the 60s also signifies the period when the British gave independence to a lot of countries - so I am sure there is a huge influence of newfound freedom of belief in these countries - and perhaps adopting Newton’s law and reacting the opposite way.
The influence of external ideologies led to polarization and significant conflicts within Afghanistan – these were imported ideologies : KGB-sponsored Marxism vs the rise of militant Afghan Islamists.
Students and activists started aligning themselves with either communism or radical Islam, leading to demonstrations, counter-demonstrations, and heated debates.
This confrontation of ideologies significantly reshaped the political landscape of Afghanistan during the late 1960s and early 1970s.
The US was playing a role here during this time as well through the CIA. And British’s M16 was popular too, if not more.
Russia left in ‘89. Masoud won in ‘92. US interference slowed down at this point. There was also apparently a rise of democrats in the US who portrayed war as a Republican thing, and they wanted to counter that.
At the same time, the late 80s/90 also gave birth to the rise of far-right conservative parties in the Islam – known as the fundamentalist (literal observation of the Quran and the Hadith) – these are the Talibans, the Al Qaeda’s.
They clashed with Massoud’s Mujahedin militant Islam party because Mujahedin was considered to be a liberal party (left wing). The clash between right and the left happens everywhere!
Now mind you, the Quran is very much like the Old Testament - which is very similar to the Torah. The Islams and the Jews have many similar practices for example praying several times a day, facing North, wearing the hat (Islam wear songkok, Jews wear Kippa). There are also the similarities between Kosher / Halal, not consuming pork etc. I don’t see why they can’t be friends in today’s time.
Back to the 90’s - there’s also the rise of corrupt leaders. Iran’s Ayatollah. Charles Taylor who was the leader in Liberia who funded the RUF to rise against their own corrupted gov’t in Sierre Leone because he wanted a hold of the Diamonds. The Taliban’s were formed in ‘96.
Massoud, opposed to their fundamentalist interpretation of Islam, led armed opposition against the Taliban regime. He eventually fled to Tajikistan. He formed the Northern Alliance and asked European Union for support to exert pressure on Pakistan who was supporting the Taliban. He also appealed for humanitarian aid to alleviate the Afghan people under the Taliban's rule.
Benazhir Bhuto was said to be extremely cunning and cruel women – but because she was well educated (Harvard / Oxford), very pretty, she seemed to get her way with everything. The CIA has very close ties with her. There is a really good video by Assange interviewing Imran Khan and the influence of US in Pakistan and funding corrupt leaders as well.
The Taliban's primary focus was on establishing an Islamic state in Afghanistan. They homed Al-Qaeda, but Al Qaeda’s goals were more global, to promote its brand of Islam worldwide.
On September 9, 2001, Massoud died from a suicide bombing act carried out by two al-Qaeda assassins, as instructed by Osama bin Laden. Massoud succumbed while en route to a hospital in Tajikistan.
Two days later, the September 11 attacks occurred in the United States. NATO and CIA then intervened in Afghanistan and allied with Massoud's forces. The Northern Alliance, with international support, ousted the Taliban’s in 2001.
Over time an entire young generation grew through this liberal (but not as liberal as in the 60’s) political landscape - I know stories of young people who went around building moving libraries etc.
Everyone fled when Biden decided to “leave” Afghanistan just like that. The Afghans were not prepared to be independent yet. A young former mayor of Kabul wrote a good piece on this - on why funding Afghans all those years blinded them and increased their dependencies on the US (and why Ukraine is going down that dangerous path too).
And after US left, Taliban took Afghanistan right back. And now we are back on the same Jihad cycle,
This book 'Ghost Wars: The Secret History of the CIA, Afghanistan, and Bin Laden, from the Soviet Invasion to September 10, 2001' by Steve Coll - the managing editor of Washington Post is very interesting. It was embargoed, won Pulitzer Prize etc. I have not finished it – I’ve got a few more books in the pipeline before I get to it – but very well written. Could not put it down.