Battle of Eredenn

Sev'rance Tann then goes to the planet Eredenn. .

Tann's army exterminates the Republic army there and captures the research facilities for the Decimators. She retrieves them and grabs a protocol droid that has data on the Decimators.

Sev'rane Tann is one step closer to having the Decimators under her control.

Source: Galactic Battlegrounds: Clone Campaigns