 The Organisation for Economic Co-operation and Development (OECD) also uses the term "Central and Eastern European Countries (CEECs)" for a group comprising some of these countries.The term "CEE" includes the Eastern Bloc (Warsaw Pact) countries west of the post-World War II border with the former Soviet Union; the independent states in former Yugoslavia (which were not considered part of the Eastern bloc); and the three Baltic states – Estonia, Latvia, Lithuania (which chose not to join the CIS with the other 12 former republics of the USSR).The CEE countries are further subdivided by their accession status to the European Union (EU)