The Bismarck Sea is a body of water located in the southwestern Pacific Ocean, situated between the northern coast of New Guinea and the Bismarck Archipelago. It is named after the German Chancellor Otto von Bismarck and is known for its rich marine biodiversity and strategic importance during World War II. The sea covers an area of approximately 200,000 square kilometers and is part of the larger Coral Sea. It is characterized by deep waters and numerous islands, making it a vital route for shipping and fishing activities in the region. The surrounding areas are also home to various indigenous cultures and ecosystems.