Complex sentence: While serving as an artillery officer in East Prussia, Solzhenitsyn witnessed war crimes against the civilian German population by Soviet liberators as the elderly were robbed of their meager possessions and women and girls were gang-raped to death.
Split into simpler sentences: While serving as an artillery officer in East Prussia, Solzhenitsyn witnessed war crimes against the civilian German population by Soviet military personnel. The noncombatants and the elderly were robbed of their meager possessions and women and girls were gang-raped to death.