Except the US will unilaterally restock the missiles at the expense of the holy american tax payer.

Emphasis on the USD?

Where are you getting this $1B figure? It appears the main cost is rockets, which run about $50k per. $1B would account for launching 20,000 rockets. There are 10 batteries in Israel with at most 80 rockets each, so a maximum of 800 rockets. That means 25 reloads a day. Is it really burning through that many rockets daily or is there more to this?

Know that US gives fake loans (forgiven the same day) for all IDF expenses. This is somehow not part of US miitary budget even though they pay for everything.

War is such an insanely expensive hobby it makes me kinda sick.

Israel attacked with local drones. Iran attacked the Israeli defense network first with expensive hypersonics and then with good old BMs