I'd recommend the book "A Peace to End All Peace" by David Fromkin. It's a little bit dull, but VERY informative. I'm sure you anything you care to learn about this subject is covered.
Agree with Devo, most of the problems we see taoday are a direct result of WWI.
Act bravely, my Brethren; take courage, and trust in the Lord. The time is fast approaching in which there will be great trials and afflictions; perplexities and dissensions, both spiritual and temporal, will abound; the charity of many will grow cold, and the malice of the wicked will increase. - St. Francis of Assisi
We should die for the things we believe in
But live our lives in the dark, self-deceiving