Found out recently that Echo is one of two communications satellites that was launched in the '60's by the US in order to pinpoint Moscow geographically for a nuclear strike.
The Triad refers to a nuclear deterrence system used during the cold war: Land strike, Air Strike and Submarine Strike. This was used by both sides as a countermeasure system, it was unlikely that all three systems would be taken out before a retaliatory launch could be initiated by the remaining ones. Canada (where I'm from) offered up its northern most islands to the US to use as part of the Land Strike, being able to launch ICBM's over the North Pole.
Dead Letterbox is a reference to a type of information transfer used by spies. It is a method where information was dropped into a 'mail' or 'letterbox' near a graveyard (where no one would really NEED to send or receive mail) to be picked up by the intended recipient. It came to mean any kind of drop where there was no direct contact between parties.
Found out recently that Echo is one of two communications satellites that was launched in the '60's by the US in order to pinpoint Moscow geographically for a nuclear strike.
The Triad refers to a nuclear deterrence system used during the cold war: Land strike, Air Strike and Submarine Strike. This was used by both sides as a countermeasure system, it was unlikely that all three systems would be taken out before a retaliatory launch could be initiated by the remaining ones. Canada (where I'm from) offered up its northern most islands to the US to use as part of the Land Strike, being able to launch ICBM's over the North Pole.
Dead Letterbox is a reference to a type of information transfer used by spies. It is a method where information was dropped into a 'mail' or 'letterbox' near a graveyard (where no one would really NEED to send or receive mail) to be picked up by the intended recipient. It came to mean any kind of drop where there was no direct contact between parties.
Wikipedia is AWESOME!!!