Thanks Garry . but you haven't answered my first question ?
Can US ships EW system and Nulka decoys or of various hardkill systems damage russian ashm moskit , yakhont , klub missile guidance ?
It is a fight between measure and countermeasure... both sides have an idea of what the other has and how it works and based on that can work out what might stop it from working properly. Of course the other side might anticipate some counter measures and implement some counter counter measures of their own....
For instance it is know that some high speed Russian missiles have angled titanium plates in their nose to deflect cannon shells and protect the warhead from HE rounds that are intended to set off the warhead. Jammers are effective against active radar guided weapons, but passive homing or missiles using IR guidance are immune to radar jammers... the missiles might even have a home on jam capability... especially those fitted with nuclear warheads that just need to get in the vicinity of the target to be effective.
Basically the article's opinion is this: Russia is depending on a number of Ukrainian parts of the shipbuilding sector, and a bad Russo-Ukraina relationship is harming the proccess of building Russian Navy.
Both true and totally wrong at the same time. The Ukraine breaking away is inconvenient because having a hostile neighbour is never a good thing, but then having a broken unreliable neighbour is just as bad... and supporting the little Ukrainian industry that is left with orders was frankly charity work that was not appreciated... the money spent on Ukrainian engines will be better spent on Russian ones now. there will be a delay of a couple of years but in the end Russia will be better off.