Answer:
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The factors which lead to the rise of feudalism was the fact that people couldn't protect themselves and needed land where they could be safe considering the fact that a single peasant didn't have enough capabilities to defend himself. This lead to the fact that these peasants had to give food and goods to their lord with his army.
The Second Truth is that this suffering is caused by selfish craving and personal desire. The Third Truth is that this selfish craving can be overcome. The Fourth Truth is that the way to overcome this misery is through the Eightfold Path. The Four Noble Truths is a fundamental concept taught by the Buddha.
Europe was in war, and the unites states was neutral