The last time Europe was taken over a blanket of facist white nationalists was the 1920s. You had the two big ones, Italy with Mussolini and Germany with Hitler. Smaller countries, Austria had Englebert, and Greece, Finland, Hungary and Poland all had facist leaders. Now we have something similar happening, England, France, and possibly Germany are having huge right wing nationalist movements.
At the time, America had a non interventionalist policy. And now our President Elect has talked about leaving Nato and not policing the world anymore.
At the time also, you had the Soviet Union as a major power that kept getting stronger. Today, Russia is a major power and getting stronger.
You also had Japan at the time as a repressive major power. Today, you have China as a repressive major power.
All that eventually boiled to the tipping point and we had WW2. Now keep in mind that WW1 was basically fought by these same countries, give and take a few differences and alliances.
So, kinda looks like history repeating if you think about it.