The Sambre is a river rising in northern France and flowing into southern Belgium. Canalized along much of its length, it passes through the Franco-Belgian coal basin, formerly an important industrial district. The Sambre flows into the Meuse at Namur, Belgium. The cities Maubeuge (France) and Charleroi (Belgium) lie along the river Sambre. The river Sambre flows through the French départements Aisne and Nord and the Belgian provinces Hainaut and Namur. Heavy fighting occurred along it during World War I, especially at the siege of Namur in 1914.
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