In a defence debate in March 1970, he claimed that "the whole theory of the tactical nuclear weapon, or the tactical use of nuclear weapons, is an unmitigated absurdity" and that it was "remotely improbable" that any group of nations engaged in war would "decide upon general and mutual suicide", and advocated enlargement of the UK's conventional forces. However, when fellow Conservative Julian Amery later in the debate criticised Powell for his antinuclear pronouncements, Powell responded: "I have always regarded the possession of the nuclear capability as a protection against nuclear blackmail. It is a protection against being threatened with nuclear weapons. What it is not a protection against is war".