All Sith have their masters. The one commanding Darth Baras is the Dark Council's feared military leader, Darth Vengean‒a warmonger seeking to reignite conflict with the Republic and finally exterminate the foe that drove the Sith into exile a millennium ago. Vengean was openly outraged when the Treaty of Coruscant was signed into law, criticizing all who supported the peace accord and even quietly disparaging the Emperor. That he survived such insolence is a testament to his power.
Darth Vengean and Baras have spent years carrying out deft political manipulations and quiet assassinations in tandem, both against the Republic and within the Empire. Now that their schemes are finally coming to fruition, Vengean's public speeches are openly bellicose. The final war is coming.