Battle of Neretva (Serbo-Croatian: Bitka na Neretvi, Битка на Неретви) is a 1969 Yugoslavian epic partisan film. Written by Stevan Bulajić and Veljko Bulajić, and directed by Veljko Bulajić, it is based on the true events of World War II. The Battle of the Neretva was due to a strategic plan for a combined Axis powers attack in 1943 against the Yugoslav Partisans. The plan was also known as the Fourth Enemy Offensive and occurred in the area of the Neretva river in Bosnia and Herzegovina.