The Russians could still strike Ukrainian hydroelectric dams, flooding everything downstream; it would be horrific, but the capability exists.And don't be mistaken, the escalation ladder still has many steps ahead. A friendly reminder that Russia so far has avoided targeting infrastructure related to medical infrastructure, waste management, water and food distribution. It took several steps of escalation on the part of Ukraine, most importantly attacks on Russian gas terminals, in order to prompt Russia to target the Ukrainian energy infrastructure on a meaningful scale. There is still much to do, many options most would prefer not to take.
They could strike command centers in Kyiv and across Ukraine.
They could strike government buildings.
Attack all the railway bridges, which number around twenty.
They could strike the bridges over the Dnieper.
They could begin systematically attacking power plants, major substations, thermal power stations, and so on. There is still an intact refinery in Sumy, and the gas depot in Lviv remains intact as well.
It is absurd that the port of Odesa still exists. It is also absurd that the grain corridor still exists.
Etc...
