Centrally planned war

Link post

We watched Dunkirk, and wondered how many military deaths are for reasons more of logistics than of facing the enemy. Probably lots—we have heard that war is made of colossal logistical feats, so probably they often fail, and often lives depend on them.

(Imagine organizing a party with hundreds of thousands of people at it. Imagine that is located in an overseas country, where you don’t have a house, and everyone hates you. Imagine that it goes for several years. Imagine it is a very stressful party for the partygoers, but also you are counting on them to carry out some hard and terrifying tasks for you during the party. Imagine you anticipate many deaths during the proceedings.)

Which made me wonder, why is war so centrally planned? Why wouldn’t all these logistical details be simpler and cheaper in the usual ways if each soldier looked after himself mostly? Similar to how it works better for each person to look after themselves during peacetime, rather than having commanders organize and dictate the whole peaceful existence effort. Thoughts?