Following the deaths of rescue workers in a Russian attack in Kharkiv, Ukrainian President Volodymyr Zelensky has criticized the West’s hesitation in providing military aid to the country as completely unacceptable. “A new air defence system could fundamentally change the situation,” Zelensky said in his evening video message broadcast in Kiev on Thursday. He said he was grateful to every country that was looking for ways to help Ukraine. At the same time, he said: “It is completely unacceptable that so many countries in the world are still thinking about how they can counter terror, even thou…