Europe basically committed suicide with the two horrendous wars of the 20th century. The 3rd (called the Cold War aka the 45 year war, aka the War Between the East and the West; aka The Great Ideological War) never quite went to its logical end which would have destroyed everything. Maybe that's why.

Who would have thought, we who were born during WWII and grew up with its tales and history and carrying its losses, that we would see war on the European continent on such a similar scale. God help those solders in Ukraine and yes in Russia. They did not deserve this - a war foisted on them by the ego and intransigence of one old man.