Battlefield operations suggest Russia could be escalating military operations in Kharkiv, according to Ukraine’s military. “The situation in the operational area of the Kharkiv Groups of Forces remains difficult, tense and has signs of escalating,” spokesperson Vitalii Sarantsev said on national television. Russia had launched a renewed offensive in the northern part of the Kharkiv region in May, but local media report that the push had ran out of steam as Kyiv’s forces halted their advance. However, Sarantsev has now said Russia forces have been observed conducting internal rotations and incr…