A senior Ukrainian official said Wednesday that Russian forces are digging in for the “heaviest of battles” to defend their illegally annexed territory in Kherson, Reuters reports. “With Kherson everything is clear. The Russians are replenishing, strengthening their grouping there,” Kyiv advisor Oleksiy Arestovych said in an online video late on Tuesday. “It means that nobody is preparing to withdraw. On the contrary, the heaviest of battles is going to take place for Kherson.”