Nuclear attack in Ukraine should spark 'devastating' Nato response, says Polish foreign minister

Zbigniew Rau rules out a nuclear reprisal but says the alliance is sending a clear message to Russia Poland's foreign minister, Zbigniew Rau, has said Nato's response to any use of nuclear weapons in Ukraine should be non-nuclear but "devastating". Speaking on a visit to Washington, Rau said the alliance was in the process of delivering that message to Moscow.