If you take a look of today's USMC's combat doctrine, it's fairly easy to note that using your precision guided weapons is always your top priority. Casualty reduction could only be achieved by utilizing every high tech toy they've got. Ground troops only come in after complete destruction of target of interest.
You could probably jam the entire GPS band with minimal amount of power output, in fact, GPS signals are extremely vulnerable against any EW attack. USMC and US Army chain of command is well aware of this potential threat. There are numerous feasible alternatives available: LINK16, FORCE NET, other advanced C4I network etc. DoD spent billions each year to Defense contractors on such military innovations, There are always counter-measure and even counter-counter-measure in development in EW fields
Anyhow, I just want to conclude that heavy reliance on air superiority and high tech toys is hardly a weakness.
You could probably jam the entire GPS band with minimal amount of power output, in fact, GPS signals are extremely vulnerable against any EW attack. USMC and US Army chain of command is well aware of this potential threat. There are numerous feasible alternatives available: LINK16, FORCE NET, other advanced C4I network etc. DoD spent billions each year to Defense contractors on such military innovations, There are always counter-measure and even counter-counter-measure in development in EW fields
Anyhow, I just want to conclude that heavy reliance on air superiority and high tech toys is hardly a weakness.