The Barents Sea is named for the Dutch navigator, cartographer, and explorer Willem Barents, who mapped the area during expeditions in the late 1500’s. Historically, the Russians referred to it as the Sea of Murmans. It is located north of eastern Norway and western Russia.
The Xue Long (Snow Dragon) is the premier polar vessel of the People’s Republic of China. It was built in the Ukraine in 1993 and modified upon its acquisition by China in 1994. Its major function is to serve as a resupply vessel and scientific research platform in the Antarctic and the Arctic.
The Turkish Straits consist of two narrow straits in northwestern Turkey, the Bosporus and the Dardanelles, and the Sea of Marmara that connects them. The Turkish Straits lie between the Black Sea to the east and the Aegean Sea, which is a region of the much larger Mediterranean Sea.
The US Coast Guard adopted the concept of geographic districts when it absorbed the US Lighthouse Service in 1939. Previously, it had no formal segmentation of its chain of command based on geography. Rather, the chain of command was grouped around function.
The trireme was utilized as a warship in the Mediterranean Sea from the 7th century BC until the fall of the Roman Republic at about the commencement of the Christian era. No other warship design has survived in service for a comparable period. It was truly the dominant battleship of its day.