The ongoing war between Russia and Ukraine has passed half a hundred days, but it does not seem to be going to any end, but day by day the war is taking a more gruesome form, meanwhile Ukrainian President Volodymyr Zelensky told the media, He said that Russia can now use tactical nuclear weapons and countries around the world should be ready for it. Zelensky has said that we do not have to be afraid, but we have to be ready for any such situation because it is not only a question of Ukraine but of the whole world.