The oldest war crime in the book?

The oldest war crime in the book?: 

In the left leaning French press, in an article in Liberation the French political scientist Gilles Dorronsoro attributes a strategic aim to this shelling. By destroying the hospital the Afghan government and its American allies would be waging a war against humanitarians who stood aloof from the US led reconstruction of Afghanistan. The destruction of the hospital would thus tear apart a major international NGO from the Taliban and deprive Taliban fighters from decent medical infrastructures and presumably affect morale and military effectiveness.