I would imagine ww2 best described in both orders: you start with the main participants, their alliances, and their general strategies/incentives, then you iter

I would imagine ww2 best described in both orders: you start with the main participants, their alliances, and their general strategies/incentives, then you iterate over each country prior to the war, and why they started to get involved in it, and finally you discuss the war itself, and its major events