This paper focuses on the importance of judiciary reform as a key segment of rule of law enforcement for the EU accession of Western Balkan countries as a process mainly driven by EU assistance. The Western Balkan (WB) countries, namely Albania, Bosnia, Kosovo, Macedonia, Montenegro and Serbia are considered 'potential candidates' for European Union (EU) membership. In the EU accession process of these countries, strengthening the rule of law is considered to be of vital importance. Although the concept of the rule of law is much broader, when it comes to the rule of law requirement, judiciary reform represents the most significant component for reform in the EU accession of Western Balkan countries. Judiciary reform is so crucial to the rule of law reform that it is at times interchangeably used as having the same meaning.