Dorvan sector

The Dorvan sector was a sector through which the Federation-Cardassian border ran. ()

Following the treaty between the two powers in 2370 it also contained part of the Demilitarized Zone. Dorvan IV was one of the planets that was transferred over to cardassian rule. 

It was a major supply route from Cardassian space to the Kalandra sector and then to Betazed during the Dominion War. Due to this role several members of the USS considered it as a likely target for the Federation Alliance's invasion into Cardassian space in late-2374. Their assumptions proved right when the target was revealed to be the Chin'toka system within the sector.