Answer:
Aerospace, Aviation, AND DEFENSE
This is not answerable as there is no article attached.
The league of nations might have forced the united states to become an international peacekeeper
It's C, I know because I got it wrong & it told me.
I would say that the best tools for establishing and preserving freedom are the Constitution, courts, and legislature in general.
The Constitution is a set of laws that all people within one country should follow and it is a document which guarantees their freedom and equality. Courts and other laws do the same thing as well.
