When Yuan Shizu attacked the Japanese, why didn't you occupy Sakhalin Island? In that case, there will be less water, and the northern part is vast and sparsely populated, so the resistance will be sm

When Yuan Shizu attacked the Japanese, why didn't you occupy Sakhalin Island? In that case, there will be less water, and the northern part is vast and sparsely populated, so the resistance will be small. I think there are the following reasons.

1. Although it will be less by water, it will pass through the Outer Xing 'an Mountains, where it is cold, virgin forest, with many mountains and many wild animals. It is not conducive to marching, and it is not convenient to transport materials.

Sakhalin Island is very cold and is a paradise for brown bears (because there are many salmon there).

The weather in Hokkaido is also very cold, which is also a paradise for brown bears.

4. Even when you arrive in Hokkaido, you have to pass through Tsugaru Strait, which is famous for its high waves, high fog and frequent shipwrecks!

At that time, Hokkaido and northeastern Japan were not the core areas of Japan.

6. Attacking Japan from the Korean Peninsula is the best way recently, because the transportation manpower and material resources are close.

7. Perhaps Yuan Shizu was arrogant at that time and thought that attacking Japan all the way would destroy Japan, so he naturally chose a shortcut instead of a long way.

If you are satisfied, please adopt it, thank you!