First battle of the Seswenna sector

"We learned that Republic forces were finally mobilizing to counterattack the Imperials in the Seswenna sector, but soon afterward, they were painfully defeated and hundreds of Republic soldiers were captured. Their fate remains unknown, but from the Empire's previous treatment of Republic military personnel, we know not to be too optimistic."

- Jedi Knight Gnost-Dural

In 3,680 BBY, during the early days of the Great Galactic War, a battle between the Sith Empire and Galactic Republic occurred in the Seswenna sector of the Outer Rim Territories. The battle was catalyzed by the Empire's naval blockade of the Rimma Trade Route, which had been strangling the flow of Republic military goods from the Core Worlds to embattled regions in the distant Outer Rim. Leaders of the Republic Military attempted to stage a counterattack in the Seswenna sector using the Republic Army, but the effort met with defeat. The victorious Sith took hundreds of Republic soldiers as prisoners of war in the aftermath and continued their domination of the Rimma Trade Route until later that year, when the Republic Navy regrouped in the Seswenna sector and launched another offensive.