Answer: Internal dissension or external pressure
As this is up to interpretation as the war hasn't progressed far enough to provide a clear answer, I am going to give the best / worst case scenario.
Best case scenario, Putin realizes that what he is doing is irrational and calls off the invasion, and Russia deals with the economic consequences.
Worst case scenario, Putin keeps pushing the war until foreign countries get involved, possibly triggering Article 5 of NATO, causing WWIII and most likely ending in nuclear war.
What I believe / hope is going to happen is that is becomes more of a cold war where there is no direct conflict outside of Ukraine and Russia / Belarus until Russia gives up.
They are elected for a period of 2 years
There were several features that helped industries grow quickly in the country after the Civil War. There was massive influx of immigrants and so there was no dearth of labor force. Also there was great improvement regarding new inventions and technological advancements. There was also great availability of raw materials like timber, oil etc.
The first European to visit North America was Erik the Red
