Racism is a big part of it. Every race thinks they are superior and somehow other people are stupid, orks, apes, subhumans etc.
When wars break out though it generally turns out that people are equally capable of killing each other and logistics is what makes or breaks any prolonged conflict. Technology helps as a force multiplier but it won’t save you if the logistics break down and you run low on ammo or manpower.
When wars break out though it generally turns out that people are equally capable of killing each other and logistics is what makes or breaks any prolonged conflict. Technology helps as a force multiplier but it won’t save you if the logistics break down and you run low on ammo or manpower.