The origins of the Star Wars sequel era’s First Order have been gradually revealed – not only by the end of the sequel trilogy, but also in various spinoffs and tie-ins. The First Order is the successor state to the Galactic Empire in the current Star Wars canon, but while its military mimics the aesthetic of its predecessor, it is a fundamentally different faction to the Empire. The First Order’s rise to power, its true purpose, its evolution from Imperial terrorist groups to a fully-fledged military junta, and how it serves the undead Emperor Palpatine are all explored in the current Star Wars canon’s post-original trilogy material.

https://screenrant.com/star-wars-first-order-origin-reveals/