United warring factions, established a military to provide for the common defense, increased infrastructure production, began preparing for the imminent arrival of the yuuzahn gong and their living planetoid ships.
Outbound flight, new Jedi order, all those Death Stars
Palpatine used an underlying racism and sexism in order to polarize his subjects. There is a very good reason you never see any female or alien stormtroopers and fighter pilots. They did exist they just weren't very common.
Original trilogy, mentioned in essential guide to characters technically not cannon :(