>> My concern is the ship launched missiles being tested by Iran.
An EMP attack requires a heavy lifter. You need to get an extremely large fission bomb 300-500 km about the surface of the Earth. Nothing ship-launched can do that. Even if they did launch something that would be a regional attack (e.g. an EMP attack against the NY-Philly-Boston metroplex) requiring a lot less altitude, we have satellites that would pinpoint the launch location. We couldn’t stop the launch but we would certainly know who to retailiate against. In addition to satellites, any Iranian naval vessel that starts heading towards the US probably gets some surface and undersea escorts for the entire trip.
Nyet, tovarich. Nukes are not required for local EMP attacks. They just make very big Electro-Magnetic Pulse.
There are several other ways to generate local EM pulses.
/johnny