From a Marxist perspective, UK, USA, France etc had the same class interests as Nazi Germany. They were also uncomfortably okay with the Nazis Pre-war. I know this is a big topic (and I’m sure some marxist books have been written on it) but briefly why did the Allies fight against Nazi Germany from a dialectical pov.
the basic answer is because Germany declared war on them.
Germany invaded France. Before Germany invaded, France and England signed a defensive pact and England got pulled into the war.
The US wasn’t going to get involved in Europe, they weren’t going to get into the war at all until Japan attacked. But Hitler declared war on the United States.
Had Hitler not declared war on France or the US, war in western Europe likely wouldn’t have happened. England was big on the whole “peace in our time” thing and likely would have stuck to it through the Nazi era, and the US still had an isolationist doctrine in regard to wars in Europe.
As well, England and France were only at war with Italy, because Italy threatened their African colonies. If they hadn’t, Fascist Italy would’ve survived like Francoist Spain did.
I’ve wondered though, why did Japan attack the US to begin with? Seemed pretty random and definitely didn’t go well for them.
Because the US was strangling them with an oil and trade embargo. It was either go to war and try to prevail against the US in the pacific with a quick decisive victory, or slowly have their empire fall apart. It was an inter-imperialist conflict over who gets to colonize the pacific. The US won and took many of Japan’s former island colonies as their military bases with which they have since been trying to surround and contain China.
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That and I would also add in about the Philippines issue. The USA controlled the Philippines and not conquering it along with the rest of southeast Asia (which they invaded mostly for resources) would leave Japan’s shipping routes and Indo-Pacific colonies extremely vulnerable to a future attack by the USA, so they opted to strike first.
Hawaii was one of the islands Japan claimed during their imperial expansion, and they were too headstrong to believe the US could defend itself against their encroachment.