Th e Twelft h Edition of Worldmark Encyclopedia of the Nations (WEN) is comprised offi ve volumes. Volume 1 is dedicated to the United Nations and its related agencies. Volumes 2 through 5,“Africa,” “Americas,” “Asia and Oceania,” and “Europe,” contain entries on the countries of the world.Refl ecting the ever-changing status of the world geopolitical situation, the Twelft h Edition includes entriesfor 194 countries, one more than the previous edition. Th is refl ects the 2006 decision of Montenegroto dissolve its relationship with Serbia to become an independent nation in its own right. Seven entries describedependencies. Th is edition no longer includes volume 6, which was entitled World Leaders.