Between the years 3973 BBY and 3965 BBY, in the opening years of the Mandalorian Wars—a war fought between the Galactic Republic and the Mandalorian Neo-Crusaders—a battle took place in the Jaminere star system during 3963 BBY. This battle happened after the Mandalorian forces conquered the Lianna system and subsequently divided their forces to attack both the Makem system and Jaminere. The confrontation within the Jaminere system resulted in a loss for the Galactic Republic. After this battle, the Mandalorians proceeded to raid the Sy Myrth system.
The book The Essential Atlas, released in 2009 and authored by Daniel Wallace and Jason Fry, made reference to the battle that occurred in the Jaminere system. Instead of a written description, the battle was only indicated on a galaxy-wide map depicting the Mandalorian Wars.