But right now it is the 21st century and I believe the international community, they have that capability, they have the equipment and they have the logistics and they are able to stop it.

NPR: Activists Host Darfur Observance Day in L.A.

"At the lowest tactical level they are very good, it's the bigger pieces now, ensuring that they've got the capability to service all their vehicles, and get the spares systems up and running, the logistics up and running, to keep what is a huge army on the road and in the fight, " he said.

BBC: Can the Afghan army take the lead in battle?