Complex sentence: Both antagonists realized that the Wehrmacht relief efforts had come to a critical stage, yet despite heavy Soviet propaganda inducements, very few German soldiers and no Waffen-SS men in the cauldron had surrendered.
Split into simpler sentences: Both antagonists realized that the Wehrmacht relief efforts had come to a critical stage. Despite heavy Soviet propaganda inducements, very few German soldiers and no Waffen-SS men in the cauldron had surrendered.