This is an astonishingly stupid article.

It ignores the fact that Hitler considered Poland an illegitimate state, whose destruction he called for, and for which he started planning the war shortly after the breakup of Czechoslovakia. He was frustrated that he had to postpone the attack a few times. It ignores the fact that he even faked the beginning of the war, by laying out corpses in Polish uniforms to pretend that the Poles had attacked first.

More generally, it ignores all the evidence of Hitler's racial ideology, which saw Poles and Russians as inferior subhumans, worthy only of being conquered and enslaved.

Even your evidence about Hitler's armaments is bogus. He did not have adequate bombers or an adequate fleet because he did not have the resources to build them if he wanted to have a big enough army. It was not peaceful intentions but poor planning, self-destructive turf wars among the services, and a poor resource-base. Read Tooze's "The Wages of Destruction", the most authoritative economic history of the Third Reich.

Churchill called it the "Unnecessary War" because he considered it preventable by hitting Hitler harder and earlier, NOT because there was so little to fight about... exactly the opposite of what Mr. Buchanan is suggesting. That is in Churchill's memoirs. But if Mr. Buchanan is fact-challenged on everything else, we shouldn't be surprised if he is here, too.