Force barrier / Legends Force barrier or Force ( war ) shield was both an offensive and defensive Force power , aligned neither with the light or dark sides of the Force , that created a barrier or wall of Force energy around the intended target , be it self , friend , or foe . Description . Force barrier was a very basic application of the Force . Depending on the individual , it manifested itself differently , appearing as a shimmering , stasis field of Force energy , or sometimes not " appearing " at all . In combat , these barriers were capable of absorbing a wide variety of physical and energy attacks . Force barriers were only used as defense and couldn ' t be used as a ' wall ' . Depending on the strength of the individual , the barrier could only withstand a few attacks before collapsing . There have been some cases where a barrier has repelled high and low pitched sound . Obi - Wan Kenobi used this technique when a bounty hunter was firing at him with a sonic boom grenade launcher . History . First practiced by the Umbaran Shadow Assassin s , the technique was later adopted by both Jedi and Sith . Masters would train their pupils to use Force barriers instinctively to the point of becoming a matter of reflex . As early as 4000 BBY , Jedi Masters prepared their students by teaching them to master Force barrier before sending them into battle . One such example was Master Arca Jeth , who , among other things , taught his three apprentices to instinctively create Force shields . Jedi apprentices on the ancient library planet of Ossus also learned Force shielding before going into battle . During the New Sith Wars , students of the Sith Academy on Korriban learned to implement Force barrier as second nature , practicing it alongside their lightsaber skills in the Academy ' s dueling ring . In Luke Skywalker ' s New Jedi Order , children were taught to protect themselves with shimmering Force barriers when they first began to recognize the power of the Force . At just five years old , Skywalker ' s twin niece and nephew , Jacen and Jaina Solo were proficient in creating Force barriers , having learned directly from their uncle . Notable uses . While training with Thon on the planet Ambria , Nomi Sunrider , her daughter Vima , and Thon were attacked by Bogga the Hutt ' s gang of pirates . When the thugs fired upon Thon and his apprentice s from their hovercraft , the Jedi Master was able to use the Force and deflect the incoming salvos . Later , when the gang surrounded and seemingly captured the Jedi trio , Thon again used the Force as a shield to repel the incoming attacks . The pirate Gudb described Thon ' s shield as being strong enough to halt the advance of a sandcrawler . Emperor Valkorion of Zakuul used a minor variation of force shield to defend himself when his own son , Arcann , attacked him . This shield seemed to only surround his hand , but also seemed to protect him from every hit of Arcann ' s lightsaber . During the Freedon Nadd Uprising , Jedi Knights Dace Diath , Nomi Sunrider , Kith Kark , and Shoaneb Culu used the Force collectively to create a defensive war - shield of protection against the attacking Naddist s . The Force barrier they created was not visible , but it was successful in repelling the onslaught of attacks the Jedi faced as they charged forward . During the Duel on Tython , Jedi Lord Valenthyne Farfalla used Force barrier both offensively and defensively against Darth Bane . As fellow Jedi Master Raskta Lsu dueled with Bane , Farfalla shielded Lsu from Bane ' s dark side onslaught with a Force barrier . When the Dark Lord tried to rush Worror Dowmat ( who was providing a source of empowerment to the Jedi through his battle meditation ) , Farfalla again threw up a Force barrier around Bane to halt his attack . Farfalla gathered energy from the light side of the Force , and at the last moment released it in a single concentrated burst of energy , encasing Bane in a stasis field of light side power . This was not enough to subdue a Dark Lord of the Sith however . The shield exploded into energy fragments as Darth Bane broke free . Darth Vader used a semi - visible Force barrier or Protection bubble around himself , while fighting Rebel terrorists , after their bombing of Coruscant in 19 BBY . After being kidnapped by Lord Hethrir , then - five - years - old Jacen and Jaina Solo attempted to shield themselves and their brother Anakin with a shimmering Force barrier . Hethrir ' s command of the Force was superior to theirs , however . He simply caused the twins ' barrier to collapse as though it were made of sand . Jacen Solo once protected both himself and Admiral Cha Niathal from an explosion in the hotel district south of the Galactic Senate , by wrapping their taxicab in a Force shield which absorbed the full brunt of the blast . Behind the scenes . On the PS3 and Xbox 360 versions of both Jedi and Sith that Galen Marek fights utilize this technique . Rahm Kota , Shaak Ti , and even Darth Vader uses it , even using it to block off Galen ' s lightsaber and his Force lightning . The Emperor used a lightning variant of this power that also harmed the approaching opponent , aside from shielding the Dark Lord . It was often used by them when these masters were preparing for a powerful force attack ; namely when Kota flings his ' saber in the air to initiate a ground slam ; Shaak Ti , whenever she is preparing to launch a force sphere ; Darth Vader , whenever he is about to unleash a blast of the Force , and the Emperor , whenever he is about to use Lightning grenade .