The term "Gneisenau" primarily refers to the German battleship SMS Gneisenau, which was launched in 1936 and served during World War II. It was named after the Prussian general August von Gneisenau, known for his military strategies during the Napoleonic Wars. The battleship was part of the Kriegsmarine and played a significant role in naval operations. In addition to the battleship, "Gneisenau" can also refer to various places and institutions in Germany, including streets and schools named in honor of the general. The name symbolizes military history and German naval heritage.