Answer:
The Soviet Union was our new enemy.
Explanation:
That expansion of slavery was a major problem for the nation
The answer is the us and great Britain led to an embargo against oil destined for japan
A concept of federalism where local, state, and national governments interact cooperatively and collectively to solve common problems separately, but more or less equally (dual federalism).
Hope this helps! :)
Why, The Wilmot Proviso amendment would have closed California and New
Mexico to slavery in 1846 as a requirement for their annexation,
but Congress did not pass the proviso.