▁Portuguese ▁recognized ▁the ▁government ▁in ▁ex ile ▁of ▁this ▁state ▁after ▁the ▁German ▁occupation ▁of ▁ 1 9 4 1 . ▁Rel ations ▁with ▁the ▁Social ist ▁Federal ▁Republic ▁of ▁Y ug oslav ia , ▁which ▁took ▁power ▁in ▁ 1 9 4 5 ▁after ▁World ▁War ▁II , ▁were ▁only ▁established ▁in ▁ 1 9 7 4 ▁after ▁the ▁Portuguese ▁Car n ation ▁Revolution . ▁Following ▁the ▁dissol ution ▁of ▁the ▁S FR ▁of ▁Y ug oslav ia ▁during ▁the ▁Y ug oslav ▁wars , ▁Portugal ▁maintained ▁relations ▁with ▁the ▁Federal ▁Republic ▁of ▁Y ug oslav ia , ▁later ▁reconst it uted ▁as ▁Ser bia ▁and ▁Mont en eg ro ▁and ▁finally ▁as ▁the ▁Republic ▁of ▁Ser bia ▁after ▁Mont en eg ro ▁declared ▁its ▁independence ▁in ▁July ▁ 2 0 0 6 . ▁ ▁In ▁April ▁ 1 9 9 9 , ▁Portugal ▁participated ▁in ▁the ▁NAT O ▁bomb ing ▁of ▁Ser bia ▁from ▁the ▁Av iano ▁Air ▁Base ▁ ▁in ▁Italy . ▁Portugal ▁also ▁provided ▁troops ▁as ▁part ▁of ▁NAT O ▁peace keep ing ▁efforts ▁in ▁the ▁break away ▁Ser bian ▁province ▁of ▁Kos ovo ▁in ▁ 1 9 9 9 . ▁In ▁April ▁ 1 9 9 9 ▁Ser bia ▁file d ▁a ▁compla int ▁with ▁the ▁International ▁Court ▁of ▁Justice ▁regarding ▁Portugal ' s ▁use ▁of ▁force ▁in ▁the ▁Federal ▁Republic ▁of ▁Y ug oslav ia . ▁As ▁of ▁ 2 0 0 7 , ▁Portugal ▁still ▁had ▁about ▁ 3 0 0 ▁troops ▁in ▁Kos ovo .