The former head of the French military mission to the UN has spoken to FRANCE 24 about how long the war in the Middle East could go on. General Dominique Trinquand says the war is now a logistics battle, which depends entirely on how many drones and missiles, and the means of launching them, remain. The difficulty for the US and Israel is that they know exactly how many they have, but it is much harder to know how many the Iranians can rely on. He spoke to us in Perspective.