Russia is gathering another group of troops near the border with Ukraine. It is preparing an offensive 90 kilometers northwest of Kharkiv, says President of Ukraine Volodymyr Zelenskyy during his address to world leaders. He recorded the address in a destroyed printing house in Kharkiv, which the Russian army recently attacked. It was one of the largest printing enterprises in Europe. “Right now, these days, we are defending ourselves 60 kilometers northeast from this place from yet another attempt of the Russian assault,” the president said. Zelenskyy says that the Russians are gathering anot…