Battle of the River Bug
22 July 1018 – 23 July 1018
The Battle of the River Bug, sometimes known as the Battle of Volyn', took place on 22–23 July 1018, in Red Ruthenia, near the Bug River and near Volyn' (Wołyń) Bolesław's Kiev Expedition in the 1015–1019 Kievan war of succession. Following the death of Vladimir the Great in 1015, his sons Yaroslav and Sviatopolk were at war about who should inherit the throne of Kievan Rus'.