>>64204416
Ukraine was one of the USSR's industrial production centers, until 2014 a lot of Russian military equipment webt there for maintenance.
A lot of the nuclear and rockery stuff was done there too. I remember watching a bunch of videos of an old Ukrainian machinist restoring a huge surface grinder, perfect tool for making high precision parts for simple rockets.
Even if they're British missiles smuggled in, what's Russia going to do about it except cry to the UN?