So the US has dumped billions

No it hasn’t.

Usa promises huge, and delivers late.

Then, when they spend “money”, then it’s not actual money (that’s the biggest scam). The money goes to somewhere inside their own country, where prices are sky high, and then things go to somewhere. Transported again on sky high prices (if at all).

This way, the bragged amounts are several orders of magnitude above the value at the receiving end.