In the film "Dr. Strangelove", which song is playing as a montage of numerous nuclear explosions that take place?

In the film "Dr. Strangelove", a 1964 black comedy that satirizes the Cold War fears of a nuclear conflict between the Soviet Union and the United States, it ends with a montage of numerous nuclear explosions, accompanied by Vera Lynn's rendition of the song "We'll Meet Again". The film was directed, produced, and co-written by Stanley Kubrick and stars Peter Sellers, George C. Scott, Sterling Hayden, and Slim Pickens. It was made in the UK and is loosely based on Peter George's thriller novel "Red Alert" (1958).

The 1939 British song "We'll Meet Again" was made famous by singer Vera Lynn with music and lyrics composed and written by English songwriters Ross Parker and Hughie Charles. The song was published by Michael Ross Limited. Directors of this company included Louis Carris, Ross Parker and Norman Keen. Keen, an English pianist collaborated with Parker and Hughie Charles on "We'll Meet Again" and on many other songs published by the company, including "There'll Always Be an England" (1939) and "I'm In Love For The Last Time" (1940).

"We'll Meet Again" was one of the most famous songs of the World War II era. It resonated with soldiers going off to fight as well as their families and sweethearts. During the Cold War, Lynn's recording was included in a music package and programs held in 20 underground radio stations of the BBC's Wartime Broadcasting Service (WTBS). It is to be used as a morale-boosting item after a nuclear attack.