The organisation is "closely monitoring" the situation and said the move would not lead it to change its own nuclear strategy. "They cannot win this war because it is for them unsustainable, it is unwinnable, [and] they cannot defeat Ukraine because we have been living with the hypothetical threat of a possible nuclear strike from day one of the large-scale invasion," he said. The construction of a storage facility for tactical nuclear weapons in Belarus will be completed by 1 July, President Putin said