Conversation so far:
What did Aleksandr Solzhenitsyn do in World War II?
During the war, Aleksandr Solzhenitsyn served as the commander of a sound-ranging battery in the Red Army, was involved in major action at the front, and was twice decorated.
What else happened while Aleksandr Solzhenitsyn was in World War II?
While serving as an artillery officer in East Prussia, Aleksandr Solzhenitsyn witnessed war crimes against local German civilians by Soviet military personnel.
What type of crimes did Aleksandr Solzhenitsyn see Soviet military personnal commit against local German civilians?
The noncombatants and the elderly were robbed of their meager possessions and women and girls were gang-raped.
Did Aleksandr Solzhenitsyn say anything else about his experiences during World War II besides witnessing war crimes?
A few years later, in the forced labor camp, he memorized a poem titled Prussian Nights.

Question: What was the poem about?
Self-contained rewrite: What was the poem Prussian Nights by Aleksandr Solzhenitsyn about?