I was a product of a divorced family and I used humor as a weapon to combat sadness. I used comedy to make my mother laugh in light of the darkness that she faced, and to me it became a very powerful tool at a very young age, at six. I saw how therapeutic it could be.
Of course, all writers draw upon their personal experiences in describing day-to-day life and human relationships, but I tend to keep my own experiences largely separate from my stories.
In the First World War, there was the sudden passion of nationalism, and the killing took place because of these emotions. But the Soviet case is different, because you had systematic murder, like the Holocaust.