Unceasing warfare gives rise to its own social conditions which have been similar in all epochs. People enter a permanent state of alertness to ward off attacks. You see the absolute rule of the autocrat. All new things become dangerous frontier districts--new planets, new economic areas to exploit, new ideas or new devices, visitors--everything suspect. Feudalism takes firm hold, sometimes disguised as a politbureau or similar structure, but always present. Hereditary succession follows the lines of power. The blood of the powerful dominates.