Any particular time? I guess the most relevant time for this question is early half of 20th century.
I think the event was first world war and some of its consequences (in many countries the monarchy was abolished so people "experimented" with new political organisatons, in Germany the war brought huge reparations which contributed to the deterioration of their economy)
and the global economic crisis of 1920
Speak softly: stay calm and speak to others rationally without forcing your opinion on others.
Carry a big stick: know you have huge assets and powers that can be used only if necessary.
Foreign Policy: TR wanted to deal with other countries in a peaceful, non-threatening manner, but would remind other countries of the vast US powers (big stick) if necessary.
Hope this helps! :)
Reconstruction last longest in <span>South Carolina</span>
The experiment as more enjoyable than participants in the other two groups