Mujahideen Tactics in the Soviet-Afghan War - Bennett Park Raiders

CHAPTER 7
SIEGE WARFARE
The Mujahideen besieged several isolated DRA garrisons. If the
besieging Mujahideen were local, then the siege went on indefinitely.
If outside Mujahideen were involved, the siege usually failed since
the Mujahideen could not maintain the supplies necessary for
the siege or keep enough of the Mujahideen in place. Since the
Mujahideen were unpaid volunteers who also had family responsibilities,
they were seldom interested in staying around for uninteresting,
lengthy sieges.