Population of Denver, CO, USA, Terra   (2013) ~       649,495
Population of London, UK, Terra        (2013) ~     8,308,000
Population of New York, NY, USA, Terra (2013) ~     8,406,000

... Assuming 50% casualty rate using conventional nuclear strike on chosen targets

Estimated casualties                          ~     8,681,748
Population of Terra (2013)                    ~ 7,125,000,000

... Casualties Estimated at 0.12%

Casualty rate within acceptable bounds.

Begin orbital bombardment? Y/n
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