Battle of the Lucazec system

A battle occurred in the Lucazec system during the Mandalorian Wars, in either 3,961 or 3,960 BBY. The Jedi Knight Revan and the Revanchists lead the Galactic Republic forces in a counter-offensive against the Mandalorian Neo-Crusaders. Charging into Mandalorian territory from the Yablari system to the Vorzyd system, they were victorious there. From Vorzyd, the Republic force attacked Lucazec and was defeated.

Behind the scenes
The battle is only referenced once in 2009's The Essential Atlas. It is marked on a galactic map showing the battles of the Mandalorian Wars rather than described in prose.