It is an important part indeed, because everything is a cycle. The peace will not last forever, and it's a good thing because humanity always needs strife to move forward. We get too fat and content if we don't have adversity, it's the eternal struggle of man. The jew will be gone, but someone else will take their place eventually. For that, people need to be always ready and vigilant, they need to keep themselves strong, focused and armed to the teeth at all times. If someone asks why would you amass all those weapons, the answer is simple - it's for the difficult.