[mass55th]

"Is there any historic evidence that Hitler only bombed the UK, just because the UK declared war on Germany, after Germany invaded Poland?"

Hard to tell. Hitler didn't begin the blitz until almost a year after the UK declared war on Germany. Hitler invaded the Channel Islands in June of 1940. He started the bombing of London in September.

[dfwgator]

He started the bombing of London in September.

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The Brits bombed Berlin first.