> why do you think we dont have boosters already i don't think that. if it's based on the rs-26 there are bound to be dozens in storage, but that doesn't mean producing 300 a year is feasible. > and infrastructure established which only needs to be scaled up? because said production infrastructure for very large solid rocket boosters scales horribly. if you're interested in this topic look up how long it takes to pour a solid rocket booster with pban-apcp. shit needs to set for days and because the boosters are massive they are a pain to handle and need a lot of space. you can probably build a dozen iskander boosters for the effort it takes to build a singular rs-26 booster.   the rsd-10 was intended for european targets and immediately resulted in a very big shift in favor of the ussr. if they could've build more of them early on they would've done so.
Germany