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It is important because it provides a critical connection between the EU and the Russian Federation. It has also helped with trade and a source food for countries

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The WW2 the allied naval forces were in the Baltic Sea in 1939-45.

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During the Roman Empire the Baltic Sea was referred to as Mare Sarmaticum or Mare Suebicum. During the early Middle Ages the Baltic region was a trade empire of the Norse.

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1. harvesting
2. shell fishing
3. fleet fishing
4. chemical resources
5.travel

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people use the Baltic Sea for shellfish hunting and harvesting, fleet fishing, chemical resources, and fertilizer,

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145,561 mi²

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1. Klaipėda, Lithuania
2. Ystad, Sweden
3. Szczecin, Poland

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The countries that share a border with this Sea are, Denmark, Sweden, Finland, Russia, Estonia, Latvia, Lithuania, Poland, and Germany.