[sbierwagen]

  This was my first encounter with ITAR – the “how dare you 
  want interesting stuff?” restrictions. Before then I 
  never realized just how USA, uh…, loves the whole world.

ITAR is a US regulation, and the USA doesn't have jurisdiction on a sale from a Japanese vendor to a Russian customer. You're thinking of MTCR, "an informal and voluntary partnership" between 34 countries. Both Russia and Japan are members: https://en.wikipedia.org/wiki/Missile_Technology_Control_Reg...