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Cold War Civil Defense

To Run or Dig In

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Early strategies of civil defense during the Cold War centered around evacuation of "critical target areas," cities where at least 40,000 people were employed in heavy industries. By removing people from urban centers to the rural countrysides that surrounded them, it was thought the loss of life could be minimized.

Yet as nuclear weapons became more destructive and delivery systems - such as Intercontinental Ballistic Missiles (ICBMs) - reduced warning times from hours to minutes, there was a shift from the strategy of evacuation to that of the fallout shelter. Civil Defense exercises underwent an evolution as well: from evacuation rehearsals to shelter drills,  like the one pictured above involving students at Harris Street Elementary School in Atlanta (c. 1950).

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Evacuation: The Interstate Highway Act of 1956 - signed into law by President Dwight D. Eisenhower - allocated $25,000,000,000 for the construction of over 40,000 miles of highway across the country over a 10 year period. Although the birth of the modern interstate system did not originate as a civil defense program, it is difficult not to make a connection between evacuation strategies and the new expressways. The "four wheels campaign" of the 1950s encouraged families to keep the car fueled and ready should the alarm be sounded and escape to the countryside be necessary. Dispersing industry away from population centers was one of the results of the highway system; the birth of the modern suburb was another.

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Shelters: Nuclear weapons tests conducted at Bikini Atoll in the South Pacific revealed how radioactive fallout could spread over thousands of miles, which helped define the need for shelters that not only could survive the initial blasts from bombs but also keep deadly gamma rays from penetrating its walls and roof. These were constructed using a protection factor (PF) measurement as a standard: a shelter with PF100 meant that there was 100 times less radiation inside than in an unsheltered space. PF standards were reduced over time to justify more shelter spaces as suitable for use.

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At no time did the Cold War seem "hotter" than in the years 1961 and 1962 when confrontations with the Soviets in Berlin and Cuba forced President John F. Kennedy to recommend an increase of 3.25 billion dollars in the defense budget, 207.6 million of which would be allocated for civil defense - with emphasis to be placed on the identification, construction and stocking of public fallout shelters.

 

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In the 1960s, this fallout shelter logo could be found throughout the built environment. As a means to mark a designated public shelter space, it was poisitioned on the exteriors of everything from schools to skyscrapers. In urban areas, the signs were so prevalent they usually went unnoticed. Now however, it has become the most recognizable icon of the Cold War.