The Madrassahs created the Mujahideen, the Madrassahs were created by Saudi Wahabi ideology & US money. What do you mean you opposed the groups that became Taliban? You clearly don't know what you're talking about. The US supported the Mujahideen (that had OBL, Mullah Omar), & the Mujahideen split up after the Soviet war in the 90s. OBL formed the Al-Qaeda. Mullah Omar formed the Taliban. The US supported both of them at the time of the Mujahideen. Haqqani was also part of the Mujahideen that the US supported against the Soviets, & he formed the Haqqani network in the 90s as well, that the US opposes now.
The Northern Alliance were created in 90s, at the end of the Soviet war, just like the Taliban, Al-Qaeda & other groups were. All these groups are direct off-shoot of the Mujahideen, & the US created the Mujahideen. To summarize, Mullah Omar, OBL, Haqqani, Masood were all part of the Mujahideen that the US created in the 80s & supported. After the Soviet War in the 90s, the US left the region. The Mujahideen split & formed their own factions/groups: OBL formed the Al-Qaeda, Mullah Omar formed the Taliban, Masood formed the Northern Alliance, Haqqani formed the Haqqani network etc. It was the US that created all these monsters with the creation of the Mujahideen, & left Pakistan & Afghanistan by themselves to deal with them by themselves.