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Located between Great Britain, Scandinavia, Germany, the Netherlands, Belgium, and France, the North Sea has long been a key maritime hub for Europe. Historically vital for trade and exploration, it became a battlefield during both World Wars. Today, it remains crucial for offshore oil and gas production, especially…

• Which sea is almost entirely surrounded by land and connected to another through a man-made passage?
• Which sea is mentioned as having served as a conflict zone in modern history?