1ва Изтребителна авиобаза Доброславци - 1st Fighter Air Base Dobroslavtsi. (LB20)
Former 18 Fighter Air Regt fighter squadron (MiG-23) was part of 1st Air Defence Division.
Later, as 1st Fighter Airbase under Air Defence Corps
Dobroslavtsi has been the main airdefence asset of the capital Sofiat until closure in 2002
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