• One must expect a war between U.S.A. and U.S.S.R. which will begin with the total destruction of London. I think the war will last 30 years, and leave a world without civilised people, from which everything will have to build afresh-a process taking say 500 years. Stated just one month after the Hiroshima atomic explosion. Russell became one of the best-known antinuclear activists of his era.