Answer:
Derrubar a autocracia do czar Nicolau II e empoderar a classe operária que era maioria na Rússia
The dominant social system in medieval Europe, in which the nobility held lands from the Crown in exchange for military service, and vassals were in turn tenants of the nobles, while the peasants (villeins or serfs) were obliged to live on their lord's land and give him homage, labor, and a share of the produce, notionally in exchange for military protection.-definition of feudalism
The Answer is no, America could have stayed out of WW2, but with all their allies and japan bombing pearl harbor they had to join. Hope this helps! (plz give me brainiest it helps with my confidence)