How did Nurhachi's Eight Banners cross the sea to fight?

In fact, Nuerhachi's Eight Banners fighters did not fight across the sea, just because the sea was frozen, they just crossed the ice directly, and did not fight directly on liquid water.

Speaking of ancient armies, those in Mongolia have always been very strong. It is because the nomadic people in the north are a little too strong that it has always been a hidden danger of the rule of the Central Plains. Including, the last feudal dynasty we are familiar with-the Qing Dynasty. It is also a headache caused by the war in Zhungeer, so their attack power is very strong. The environment in which they live is basically the prairie, and there are no rivers in the great plains. In this case, it is difficult for them to gain an advantage where there is water.

In the late Ming Dynasty. The biggest threat is Manchuria. The Ming Dynasty attached great importance to this war, so it invested a lot of resources. Yuan Chonghuan is fighting at the front. Under his correct leadership, Nurhachi dared not fight any more. Later, the rear base of the Ming army, Juehua Island, was landed by the Eight Banners. This island is an island at sea, and there is no danger around it. Mainly because the Ming army saw them like this and thought they would not come back to resist, so they took it lightly. At that time, the weather was cold, and the sea surface was basically frozen. Therefore, the seawater that could have been used for defense has become a very unfavorable way for itself.

So the so-called cross-sea combat refers to this plot. But they really didn't fight on running water. At that time, the water had frozen. For the Eight Banners, the difficulty is much reduced, but it is a bit slippery.