Most every important piece of military and national command authority electronic/electrical gear has been EMP hardened. Equipment tests used to take place down along the Chesapeake at Solomons Island, USN facility in Maryland when I was still in DC.
All DoD equipment has to be compliant with the MIL-STD below:
https://nts.com/services/testing/emc/electromagnetic-pulse-testing/
How about they create the Potomac Sea? ;-)
EMP hardening is good news for the civilian population.
That raises the ante for the Russians to target direct hits on military installations since EMP will not disable them.
I doesn’t matter that the military equipment is protected against EMP. The civilian infrastructure isn’t. From https://www.redcom.com/emp-protection/
Scenarios after the event of an EMP attack:
Communications are down everywhere.
No broadcast radio or TV, no cable, no cellphones, very limited telephone service
Contact with EMS, fire departments, and police are cut off
State and local governments cannot run their operations
Satellites around the EMP event will cease to function
No power across the U.S.
Power stations knocked out
Grid transformers destroyed. They are about $1m each, are custom built, and take 18-months to make
All factories cease to operate.
Standby generators at critical facilities are destroyed. Even if not destroyed, they must be fed fuel and oil
Homeowners cannot run heating appliances to withstand winter temperatures
Gas, natural gas, and diesel supplies can’t be pumped through pipelines without electricity
Plants cannot pump water or purify it
Sewage treatment plants and pumping stations stop working
Travel is drastically impeded.
Aircraft who survive the EMP can’t fly due to fuel shortages
Fuel stations across the country lose power, therefore lose the ability to pump gas
Diesel trucks that haul food, supplies, and everyday items would cease to run
Modern cars are affected by the strong EMP pulse
Quickly lose access to everyday necessities like food and medical care.
Food does not get to stores
The US typically has only three-days to a week’s worth of food stock – stores depend on “just in time” deliveries
Hospitals lose power and ability to keep patients alive
Medications stop being produced
Access to money obstructed.
Bank networks are down, and ATMs stop working
Cash is the only way to pay, and most don’t carry a years’ worth of cash