Militarily significant

Via the Long War Journal:

Taliban raiders destroyed another NATO supply column at a shipping terminal in the insurgency-wracked Northwest Frontier Province. The latest attack has caused Pakistan to shut down the NATO supply route through Peshawar.

The Taliban launched an attack on the Bilal Terminal on Peshawar's Ring Road early Monday morning Pakistan time. More than 50 vehicles laden with supplies destined for NATO were destroyed after a Taliban force stormed the compound and burned the vehicles, a senior US intelligence source told The Long War Journal. The size of the Taliban unit is unknown.

[snip]

The attack at the Bilal Terminal is the third such strike in two days. Early Sunday, the Taliban destroyed more than 160 NATO vehicles, including an estimated 60 to 70 Humvees, in two separate attacks on the Portward Logistic Terminal and the Al Faisal Terminal in Peshawar. An estimated 200 to 300 Taliban fighters stormed the Portward terminal, while the size of the attack force at the Al Faisal Terminal is unknown.

[snip]

A US military spokeswoman described yesterday's attacks in Peshawar as "militarily insignificant." More than 70 percent of NATO supplies destined for Afghanistan move through Peshawar.

I mean, I'm sure military spokesperson would know more than I, but the destruction of over 150 vehicles would seem to matter.