Solo - Niathal coup The Solo - Niathal coup was a in 40 ABY , during the Second Galactic Civil War , against Chief of State Cal Omas by Jacen Solo which made Jacen Solo and Cha Niathal the joint Chiefs of State of the Galactic Alliance . Background . As the war continued , Omas could do little to retaliate , but when his opposite number in the Corellian government , Dur Gejjen , contacted him for peace talks , Omas saw an opportunity . Meeting with Gejjen on Vulpter , he requested that Jacen Solo , head of the Galactic Alliance Guard , and Cha Niathal , Supreme Commander of the Galactic Alliance Defense Force , be neutralized , and in return , Corellia would be accepted back into the Alliance and hostilities would cease . Gejjen agreed , but as he walked away from the meeting he was felled by a head shot from a GAG sniper — Ben Skywalker . Although Omas was able to return to Coruscant safely , he now found himself utterly friendless . Upon learning this , Solo decided that Omas was no longer fit to serve . He began studying galactic law , and began lobbying for more power , which the Senate gave him . Eventually , he had the required power to oust Omas . Solo also made an agreement with Niathal . The Coup . Jacen Solo used a legal loophole to stride into Omas ' residence at Republica House with a GAG escort of Sergeant Wirut and Trooper Limm . Solo arrested Omas , who responded with icy indifference in front of the soldiers . When they had left , however , he verbally accosted Solo , labeling him a " power - crazed … little jerk " . The stated reasons were that he had entered into secret negotiations with Dur Gejjen ; however , the Justice Department did not charge him until an extended period following his arrest . Cha Niathal , now the acting Chief of State , declared both herself and Solo to be joint Chiefs of State . They both declared that their junta was legal and temporary , and promised that there would be rapid elections following the end of the conflict . They also sealed off the Chief of State ' s office , proclaiming that only duly - elected representatives could sit in it . Aftermath . Although the move originally shocked many senators and citizens , Niathal ' s speech to the Senate and Jacen Solo ' s meeting with protesters largely quelled any major disputes , and the populace as a whole seemed to accept the change with little fuss . While Admiral Niathal genuinely believed that the military coup was only for the duration of the war , Jacen Solo , however , began laying the plans for his eventual rule of the entire galaxy as Sith Lord . As Solo engaged in increasingly questionable actions , Niathal became more and more disturbed about her co - chief of state , especially after he had - unknown to her - became the Sith Lord Darth Caedus . After learning that Caedus had murdered Lieutenant Patra Tebut in a fit of rage , she wanted to have him relieved of duty and arrested for his crimes , but knew that the Galactic Alliance Guard would never back her up . A few months later , Admiral Niathal and Darth Caedus attacked Fondor to subdue a key Confederation world . When Darth Caedus refused an order to stand down after the Fondorians had surrendered , Niathal attempted to relieve Caedus of duty . A majority of the fleet remained loyal to Darth Caedus , who soon withdrew to Coruscant . Niathal remained on Fondor , setting up an Alliance - in - exile on that world . Behind the scenes . It is possible the joint - Chiefs system is the basis for the Triumvirate .