Religion is almost always used as a prop, especially for wars.
Sure, but the point stands that none of the wars you cite were fought
because of Christianity. Germany’s attack on Poland was an attack by an ostensibly Christian nation on a Catholic nation. And?
Nothing you have posted rebuts my observation "In the 20th century, one would be hard pressed to deny that Christian countries weren’t the most dangerous countries." That statement does not mean no other type of country is not dangerous.
The point that stands that none of this warmaking was
because of Christianity, but because of power politics, so I do not see what point you are trying to make.
Fair enough, even though I disagree.
Are you saying you think the cause of World War II was Christianity? I think it was Hitler, who was not a Christian but pretended to be;
No I am not. A war does not have be a religious crusade to be facilitated or driven by religious beliefs. The European Axis powers - who started the WWII in Europe -were very much traditional conservative Christian nations. That heritage and history is part of their culture, which helped the Germans and the Italians to follow and obey their brutal leaders.
Russia is also one of them.
Mussolini, who was a fascist, and the military dictatorship of Japan, which had nothing to do with Christianity.
Mussolini was an avowed atheist before he took power. Once he rose to lead Italy, he harnessed the power of the Catholic Church to help him govern.