Complex sentence: The Russians, although not prepared for the attack, did have the foresight to have their torpedo nets deployed, which helped to keep damage to the vessels to a minimum, however, confusion still ran rampant throughout the harbor's interior.
Split into simpler sentences: The Russians, although not prepared for the attack, did have the foresight to have their torpedo nets deployed, which helped to keep damage to the vessels to a minimum. However, confusion still ran rampant throughout the harbor's interior.