The First Tungan Incursion
Military action
2180CE
A major Tungan fleet enters into the edges of Solspace, raiding outlying colonies. The Federation sends their entire fleet to the Battle of Herzog's Star. The Federation fleet is annihilated, and there is a real fear the Tungans might wipe out humanity completely. Instead, after a few years of destroying colonies, the Tungans return home. This is considered the closest moment humanity came to extinction.