The Bug or Western Bug is a major river in Eastern Europe that flows through Belarus (border), Poland, and Ukraine, with a total length of 774 kilometres (481 mi).A tributary of the Narew, the Bug forms part of the border between Belarus and Poland for 178 kilometres (111 mi) and part of the border between Ukraine and Poland for 185 kilometres (115 mi).
The Bug is connected with the Dnieper by the Dnieper-Bug Canal. Out of its 38,712 square kilometres (14,947 sq mi) drainage basin, half is in Poland, just over a quarter in Belarus, and slightly under a quarter in Ukraine.
