Complex sentence: Exploiting this success, the Soviets stopped the evacuation of the city by sea and instead sent reinforcements, bolstering the strength of the Soviet forces up to 100,000 Romanians were forced to more-than-double their own numbers as well.
Split into simpler sentences: Exploiting this success, the Soviets stopped the evacuation of the city by sea and instead sent reinforcements, bolstering the strength of the Soviet forces up to 100,000. The Romanians were forced to more than double their own numbers as well.