" It is an Inertial Guidance System with an additional Star-Sighting system (this combination is known as astro-inertial guidance), which is used to correct small position and velocity errors that result from launch condition uncertainties due to errors in the submarine navigation system and errors that may have accumulated in the guidance system during the flight due to imperfect instrument calibration. GPS has been used on some test flights but is assumed not to be available for a real mission. "
Tomahawk missiles are also fed a navigation package before launch which allows them to navigate without additional signals (I'm sure accuracy goes up if they do have GPS available). I believe it's something akin to terrain maps that it can use to navigate to it's target.
I would argue that any nation that is reliant on those public networks to be effective are going to lose within minutes of an actual conflict.
I believe it's already established that the Russians are capable of completely blocking out GPS signals.
So no, I don't think we'd be facing mutually assured destruction.
Now the impact on civilian life if some nation decided to start the space wars? Catastrophic. We'd basically block off space for the next 100 years because of deadly debris in orbit :/
" It is an Inertial Guidance System with an additional Star-Sighting system (this combination is known as astro-inertial guidance), which is used to correct small position and velocity errors that result from launch condition uncertainties due to errors in the submarine navigation system and errors that may have accumulated in the guidance system during the flight due to imperfect instrument calibration. GPS has been used on some test flights but is assumed not to be available for a real mission. "
https://en.wikipedia.org/wiki/Trident_(missile)
Tomahawk missiles are also fed a navigation package before launch which allows them to navigate without additional signals (I'm sure accuracy goes up if they do have GPS available). I believe it's something akin to terrain maps that it can use to navigate to it's target.
I would argue that any nation that is reliant on those public networks to be effective are going to lose within minutes of an actual conflict.
I believe it's already established that the Russians are capable of completely blocking out GPS signals.
https://www.nbcnews.com/news/vladimir-putin/russia-spoofing-...
So no, I don't think we'd be facing mutually assured destruction.
Now the impact on civilian life if some nation decided to start the space wars? Catastrophic. We'd basically block off space for the next 100 years because of deadly debris in orbit :/