The Siege of Corellia was a battle that took place on the planet of Corellia in 50 ABY. The Praetorium launched a major offensive to take the Core. Corellia's battle lasted sixteen weeks. Darth Tra'cor's Talon Legion hounded the world, with the Jedi leaders continually refusing her access to the planet's key structural elements allowing them to hold out as Imperial reinforcements arrived to repel the onslaught.