Russia or Ukraine… Who benefits and who loses from the collapse of the Nova Kakhovka dam? also know the reason

Due to the breaking of the Nova Kakhovka dam in southern Ukraine, a deluge-like situation has prevailed. This area is currently a battleground between Russia and Ukraine. Meanwhile, both the countries are evacuating thousands of people trapped in the flood. Ukrainian President Volodymyr Zelensky has visited the flood affected area and accused Russia of terrorism.