Direct proof of use
The BMP-1 appeared in the 2001 War in Afghanistan through Afghan government-aligned forces rather than as a primary U.S. or NATO armored vehicle. U.S. Army display history states that BMP-1s were active in Afghanistan and deployed in limited numbers against the Taliban.
A DVIDS story from February 2005 provides a unit-level example of field use: Afghan National Army Central Corps soldiers from 2nd Kandak, 3rd Brigade used a BMP-1 armored personnel carrier while responding to the Kam Air crash site on Chaperi Mountain east of Kabul, alongside U.S. embedded tactical trainers and ISAF coordination.
Sources: RIA Self-Guided Tour: BMP-1 Armored Personnel Carrier, DVIDS Afghan National Army Assists in Plane Crash Aftermath
Timeline
In April 2019, the U.S. Army summarized the BMP-1's modern combat service by noting Afghan activity and limited deployment against the Taliban. That source does not name a specific Afghan unit or operation, so it supports the conflict-use claim at theater level rather than a detailed incident history.
The clearer dated field-use point is February 6, 2005, when the Afghan National Army used a BMP-1 to move soldiers and supplies during the Chaperi Mountain crash-response mission near Kabul.
Sources: RIA Self-Guided Tour: BMP-1 Armored Personnel Carrier, DVIDS Afghan National Army Assists in Plane Crash Aftermath
Narrative
The documented role was limited armored mobility and support for Afghan government-aligned forces. The BMP-1's troop-carrying layout and 73 mm gun made it a legacy infantry fighting vehicle that could move soldiers and provide close support, but the available public sources for this conflict do not establish a large Afghan BMP-1 fleet or a detailed combat chronology.
The 2005 DVIDS account places the vehicle with Afghan National Army soldiers based at Pol-e-Charkhi and operating under a Ministry of Defense tasking during an ISAF-coordinated emergency mission. The U.S. Army display history supplies the broader conflict-use link by stating that BMP-1 vehicles were deployed in limited numbers against the Taliban.
Sources: RIA Self-Guided Tour: BMP-1 Armored Personnel Carrier, DVIDS Afghan National Army Assists in Plane Crash Aftermath