Trav'ling Canuck
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- Joined
- Feb 7, 2018
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Also, many shipyards are on a river and not on the sea itself. So, many battleships and aircraft carriers had to travel down a river first to get to the sea. Traveling up a river is usually avoided for tactical reasons, not because it is impossible.
To this point, sailing a battleship up a river when there are any enemy land units in range sounds like a great way to turn your battleship into an artificial island. Even worse if you don't have control of the sky, as there'd be no way for the ship to conduct defensive maneuvers when engaged by enemy aircraft, no way to screen the capital ship with destroyers, etc.