Battle of Mon Calamari ( Clone Wars ) The Battle of Mon Calamari was a battle fought between the aquatic Quarren and Mon Calamari races on the planet Dac during the Clone Wars in 22 BBY . Their secessionist ideals represented by the Quarren Isolation League , backed by the Confederacy of Independent Systems and bolstered by the telepathic abilities of the indigenous Moappa species , the Quarren attempted to seize control of the planet from the Calamari Council , who were backed by the Galactic Republic . When the Quarren proceeded to launch an attack on the Calamari people , the Republic sent an aquatic detachment of clone troopers led by Jedi Master Kit Fisto to quell the threat . Fisto himself was chosen by Grand Master Yoda to participate in the battle due to being a member of the aquatic Nautolan race . Fisto led his clone SCUBA troopers against the manta droid subfighter s and other aquatic weapons of the Separatists , which were commanded by a Quarren warlord . The warlord himself eventually participated in the battle from the bridge of a Crab Cannon , which turned the tides of the battle against the Republic : the Cannon had the ability to destroy an entire Republic assault ship floating on the surface of the ocean . The combined might of the Republic and the Mon Calamari Knights managed to destroy the Crab Cannon and subdue the Quarren forces . Prelude . The Quarren and Mon Calamari had coexisted on the planet Dac ; however , their relationship had always been in shaky waters . The Quarren anger , mistrust , and jealousy against the Mon Calamari people had grown within the ranks of their neighbors , the collective intelligence of the Moappa . The Quarren Isolation League was established to counter the apparent Mon Calamari domination over the Quarren race . Eventually , Count Dooku of the Confederacy of Independent Systems intervened in the political turmoil , pledging support to the Quarren secessionist movement . Now backed by a droid army , the Quarren moved against the Mon Calamari , intending to start civil war . Unwilling to lose a powerful ally in the Mon Calamari people , Grand Master Yoda of the Jedi Order sent a detachment of the Grand Army of the Republic led by Jedi Master Kit Fisto to assist the Mon Calamari . The battle . At the beginning of hostilities , the Quarren Isolation League moved against Calamari cities with the help of CIS battle droids . The Calamari were quickly reinforced by Fisto ' s fleet of " Acclamator " - class assault ships , which landed in the broad oceans of Dac . From his command ship , the Jedi Master leaped into battle with an army of Clone SCUBA troopers , engaging the Quarren army in its own element . The battle eventually settled around a large self - propelled artillery cannon . It managed to fire two shots , destroying one " Acclamator " - class assault ship before Kit Fisto was able to destroy the cannon ' s legs with massive force bubbles . With the aid of the native Mon Calamari Knights , the gun was pushed over the edge of a chasm and destroyed . The fighting continued for several more days as the elusive Moappa telepathic swarm consciousness continued its command of the Quarren , angered by the Mon Calamari ' s arrogance in claiming their planet for themselves . Fisto destroyed several Quarren outposts , and interrogated survivors as to the whereabouts of their commander . Having found that all the Quarren soldiers received their commands telepathically , he managed to locate the Moappa , engage them in combat , and learn of their intentions . Dispersing the Moappa to such a degree as to deny them their collective intelligence , Fisto returned to the Mon Calamari victorious . Aftermath . Fisto advised the Mon Calamari to use their diplomatic techniques to deal with the Moappa ' s demands ; by this time heavy conflict had died down to a halt . Although the Mon Calamari had emerged victorious over their Quarren adversaries , reunification of the planet did not last long . In 21 BBY , the warlord Riff Tamson , a benefactor of Count Dooku , assassinated King Yos Kolina , leaving the young and inexperienced Prince Lee - Char to claim the throne . This angered the Quarren people , who once again decided to attack the Mon Calamari people in what became known as the Battle of Mon Cala . Behind the scenes . After being teased in the first installment of " " , the Battle of Mon Calamari was featured in " Chapter 5 " of the series . The conflict was also playable from the perspective of Kit Fisto in the video game " " .