David Quinn on just war

In an article in the current issue of The Irish Catholic journalist David Quinn argues in favour of the church maintaining a just war theory.

In the article he writes that had Britain and France not declared war on Germany when Hitler invaded Poland, Nazi Germany would not have invaded France in 1940. Instead they would have been free to head east and would most likely have defeated the Red Army.

There is no maybe, no probably, David Quinn clearly states that Hitler would not have invaded France.

How can he be so sure? How does he know what Hitler would  or would not have done?

Is David Quinn also an expert on the Red Army and the Soviet Union? Does he know what happened on the Volga?

It sounds preposterous.

If all the ifs and ands...... but had the leaders in State and church worked for the genuine good of the people in the Weimar Republic would Hitler have been given the oxygen to be who he became.