What Egypt could have done differently to save itself from decline?​

They could have trained tougher armies

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

according to worldatlas.com, the u.s. has an 86% literacy rate.