>>/50335/
The water level of the reservoir up stream will lower but it's still going to be a huge body of water. But, the flooding will widen and deepen the river down stream which is the area around Kherson and where it's easier to cross. So it makes a Ukrainian attack much harder.

However, I have heard that this will cause problems with Crimea's water supply.

 >>/50336/
You would think that an officer would behave better than this but apparently not in Slavic armies.