[binarray2000]

Twenty years ago, a bearded man in a cave ("Ali Baba") and his 19 "thieves" have managed to attack the superpower with a combined security budget (military and all intelligence agencies) of around 1.000 billions (1) on its soil, (2) using only box cutters!

The explanation offered to the world by the superpower was: Everyone failed. Yet, no one of those in high positions in the security aparatus of the superpower who has failed at doing his highly responsible job has resigned and no one was prosecuted.

What sounds like a (bad) fairytale really happened. Over 3.000 people died that day and many more thousands have died and are still dying as a consequence of what happened that day.

Attackers budget was probably 0.00...1% of the budget of the superpower.

[SkyMarshal]

That wasn't a war, just a single one-off attack, and the attackers lost to the US in the end anyway.