Photo stills taken from an educational video aimed at Cold War-era primary school students in the 1950s in the United States show how they were told to survive a nuclear bomb attack.
The footage taken from a clip first broadcast in 1951, begins by explaining that as long as someone is inside a building they will be safe from the heat of the bomb, while retreating to a basement would offer protection from the radiation.
The frightening footage also offers advice on what to do should you get caught outdoors when a chemical bomb explodes.
The instruction to get behind any kind of wall or lie flat on the ground while protecting your eyes and neck is made further redundant by their suggestion that the risk from radiation would be over after one minute.
While it was known when this film was produced that the immediate effects of an atomic bomb were devastating, the long term effects had not yet been revealed.
The atomic bombs over the Japanese cities of Hiroshima and Nagasaki in August 1945 resulted in horrific casualties and devastation.
The long-term effects of radiation exposure also increased cancer rates in the survivors. Approximately 200,000 people died in the bombings and their immediate aftermath, mainly from the explosive blast, the firestorm it sparked, and from acute radiation poisoning.
Click through the gallery to see how American citizens reacted during the nuclear bomb drill.