Arguing that it was a justifiable invasion or a liberating one is one thing, but implying that somehow the invasion of Afgghanistan wasn't a real invasion is a bit bizarre.

Without the intervention of the USA, most especially the air attacks, there would have been virtually no possibility of the Northern Alliance overturning the Taliban and getting its warlord allies to change sides.

It's a bit like saying that just because Cortez had only a handful of Spanish troops, and the help of local allies the Conquest of Mexico was not an invasion.