The Duckbill Battery earned its name because it was situated on Duckbill Cape at Haidong Bay. The shape of the cape closely resembled a duck's bill and acted as a natural breakwater, like an arm extending from the land sheltering Haidong Bay.
By establishing a battery on Duckbill Cape, offensively, it controlled the narrow entrance and exit of Haidong Bay; defensively, every ship in the port fell within the range of its guns. If necessary, a chain could be stretched from Duckbill Cape to the opposite shore to block any maritime enemies.
It was precisely because of Haidong Bay's unique geographical advantages that the Vineta Navy constructed a dedicated dock here, making Haidong Port the home base of the entire Vineta Navy.
But now, the port had fallen. Heavy cannons atop Duckbill Battery were being rotated to bombard the naval ships moored within the port.
And the army officers had received orders, "Take back this place."