Tczew ([tt͡ʂɛf] (listen), Kashubian: Dërszewò, German: Dirschau ) is a city on the Vistula River in Eastern Pomerania, Kociewie, northern Poland with 60,279 inhabitants (June 2009). The city is known for its Old Town and the Vistula Bridge, or Bridge of Tczew, which played a key role in the Invasion of Poland during World War II.