what did the US learn from the persian gulf war?

Answer 1

a. Wars cost a lot of money.
b. wars against third world countries are relatively easy.
c. Old design soviet tanks were easily destroyed.
d. Iran is not to be trusted.
e. Israel is not to be trusted.
f. Jordan is a in a very complex, difficult country, with a lot of political and economic issues that are juggled.
g. International coalitions are difficult to form, and slow to adapt to changing situations.
h. Night vision technology is vital for troops.

But you ought to be aware, when you ask what did the US learn, a lot of folks have diverse views.