One Earth Space Defense engineers were ready to test a prototype planetary-wide forcefield.


    "How will we know it''s effective?" asked Space Commander Erika Jones.


    "We’ll know immediately when the Martian Republic launches another strike," answered the chief engineer.


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    "I certainly hope so. They''re developing an EMP bomb capable of crippling an entire continent."


    "It''ll work, ma''am."


    "Fire when ready."


    Sure enough, the Martians launched a barrage of interplanetary missiles exploding within their own terraformed atmosphere.


    "Chief, did you miscalculate something? The forcefield isn''t surrounding Earth."


    "Correct, ma''am. Mars can now be designated a prison planet."


    "Even better!" clapped Commander Jones.