3. Pilots are very expensive. Not just to train but also in terms of the political cost of having pilots killed or captured by the enemy. In terms of ethics, t

3. Pilots are very expensive. Not just to train but also in terms of the political cost of having pilots killed or captured by the enemy. In terms of ethics, there is a need to ensure that war has a human cost or there is very little to stop countries doing it all the time. If the cost of war is purely financial, then I think perhaps that might be the beginning of the end to the world as we know it.