Sector Force A Sector Force , or SecForce , was the largest military organizational unit used by the Alliance to Restore the Republic ' s military forces . Semi - autonomous from the rest of the Rebel Alliance , Sector Forces were charged with resisting the forces of the Galactic Empire in their home sectors . Unlike the similarly named Sector Armies of the Grand Army of the Republic and the Imperial Army , or the Sector Fleet s of the Imperial Navy , the role and organization of a Sector Force varied widely . Some were powerful forces , with fully equipped planetary forces supported by a fleet of combat starships . Others had little more than a few thousand part - time guerrillas planetside , with almost negligible space forces . Sector Forces within the Alliance . Unlike the mobile forces of the Alliance Fleet , Alliance Special Forces , and Alliance Special Operations , Sector Forces conducted operations against the Galactic Empire ' s interests in a single sector . The local nature of their missions meant that their leaders were usually drawn from local resistance forces as well . Sector Forces maintained a precarious balance in their home sectors : the Empire could easily crush a Sector Force which was too weak , but a strong resistance could just attract additional Imperial attention to a sector . The Sector Forces of the Rebel Alliance were coordinated by and subordinate to Sector Command , or SecCom , one of the largest branches of Alliance High Command . While the Alliance Charter gave Chief of State Mon Mothma control over every department in Alliance High Command , Sector Command rarely interfered with a Sector Force ' s internal affairs . In general , they restricted their activities to operating the communications network which passed directives from Alliance High Command down to Sector Force leaders , who would then be allowed to decide how their activities could support those directives . For crucial operations , however , Sector Command would send a Command Group to act as liaisons with a Sector Force , or even take temporary control of the operations in the sector . If a Sector Force ' s leadership turned out to be corrupt , completely inept , or compromised by Imperial agents , Sector Command would have to deal with the problem . In some cases , they would take over the Sector Force and reorganize the command structure . More often , however , the Alliance would simply stop supporting the Sector Force with intelligence , supplies , weapons , or personnel . After the Sector Force collapsed , the Alliance would start a new one from scratch . This procedure was hard on the rank - and - file soldiers and resistance cells in the sector , but the Alliance could rarely justify the resources necessary for a power struggle against a theoretically allied military organization . The greater Alliance also supported Sector Forces with their own assets . New Sector Forces were loaned Special Forces units and Sector Command officers assigned to help train and lead troops until their own officer corps was developed . Starfighter wings and other forces could also be assigned to particular sectors : sometimes on short - term missions , and sometimes as long - term assignments . These forces would sometimes answer to both the Sector Force leadership and the Alliance High Command . Internal Organization . The Alliance had thousands of Sector Forces . Each Sector Force usually began with existing organized resistance forces whose leadership agreed to be bound by treaty to the Rebel Alliance . Due to the variety of Sector Forces , no standard order of battle existed , and it was difficult to describe any of them as even " typical " in their organization . Rebel historian Arhul Hextrophon , however , once described the Atrivis Sector Force as a useful model . The Rebel Alliance in Atrivis sector began as the Atrivis Resistance Group , itself an alliance between the Fest Resistance Group and the Mantooine Liberators . The two highest - ranking leaders of the Atrivis Sector Force , Travia Chan and Loom Carplin , were part of the leadership of those two forces . Alliance High Command also assigned two high - ranking officers to Atrivis sector . One , Wing Commander Varth , led a starfighter wing under the joint command of the Sector Force and Starfighter Command . Another , General Kryll , commanded the Outer Rim Communications Center , but this was strictly speaking an asset of Sector Command rather than the Atrivis Sector Force . The Alliance also assigned Special Forces officers to train resistance fighters , an advisory unit from Sector Command , and support personnel for the starfighter wing . Most of the Sector Force ' s combat assets were ground forces . The two largest planetary forces were on Fest and Mantooine , though the sector ' s other inhabited planets hosted many smaller ground units . These units battled the forces of the Empire and Imperial - allied planetary governments , primarily through guerrilla warfare and sabotage . Like many Sector Forces , however , Atrivis sector had negligible space combat assets beyond the starfighter wing . Atrivis Sector Force , like many Sector Forces , organized its other departments and commands much like a miniature version of the greater Alliance . The Sector Force as a whole maintained a small , but effective intelligence branch , which had a role similar to Alliance Intelligence ' s role in the Rebellion as a whole . Similarly , their Ordnance and Support branch , responsible for supplying , transporting , and providing other services for the sector ' s combat ground units , was analogous to the Alliance ' s Ordnance and Supply and Support Services .