Second Europan War
Though EWI ended in a stalemate, both powers had spent the intervening years stockpiling arms and preparing for the inevitable return to hostilities. After a short 20-year pause the Empire began the invasion anew, taking three of the Federation's border republics in quick succession. The Federation responded with a formal declaration of war.
It wasn't long before the forces of both superpowers began to spill across of the borders of other neighboring nations. Soon, all of Europa was caught up in a war that dwarfed all those in memory.