This is Dr. David
the US and Russia worked together on the HEMP project.
"After the 1991 collapse of the Soviet Union, there was a period of a few years of cooperation between United States and Russian scientists on the HEMP phenomenon. In addition, funding was secured to enable Russian scientists to formally report on some of the Soviet EMP results in international scientific journals."
you don't have to worry about Russia using this weapon on the USA.
a strong EMP pulse could turn off the pacemaker.
but all power would be loss everywhere.
there is really no way to protect from it.
but chances of it happening are less than one in a billion and super super super rare and unlikely
let me know if you have other questions.