American isolationist sentiment actually began immediately following the Revolutionary War and then increased drastically after WWI, when many American troops died for a war overseas.
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be "in a state of depression," since it was not until the US mobilized for the war that it was able to finally dig itself out from the Great Depression. </span></span>
That the abolition movement gained support as the law forced Northerners to take part in the system of slavery.
The Khmer Rouge took power in Cambodia immediately after the Vietnam War. I hope this helps :)
