Answer:
"He kept us out of war."
Explanation:
In the Presidential Election of 1916, President Woodrow Wilson campaign slogan was, "He kept us out of the war." He narrowly won the election and was the Democratic candidate. His slogan meant that America will not enter into World War I in Europe. Ironically, a few months before the United States entered World War I.
Limbic system is the correct answer
The political and economic characteristics that made possible United States expansion through the different events in the past, are very different from today. It could be possible for the United States to expand in the present, but certainly, it would happen by negotiations and following the international organizations pacific means.
The cities were very spread out, the houses weren't as close together