>>212377944>invadersIt lasted so long specifically because it didn't have any. Their armies were more akin to a police force that kept the south in check when it revolted against the north. But eventually others became interested in Egypt, since their desert was becoming less and less of a challenge to cross. Once again, it's kind of like building on peaceful mode. No outside variables, except sending out a few trade hips that eventually get others interested in Egypt.