The Macedonia naming dispute is a political dispute regarding the use of the name Macedonia between the Balkan countries of Greece and the Republic of Macedonia, formerly a federal unit of the Socialist Federal Republic of Yugoslavia. Pertinent to its background is an early 20th century multifaceted dispute and armed conflict that formed part of the background to the Balkan Wars. The specific naming dispute, although an existing issue in Yugoslav-Greek relations since World War II, was reignited after the breakup of Yugoslavia and the newly gained independence of the former Socialist Republic of Macedonia in 1991. Since then, it has been an ongoing issue in bilateral and international relations.