At the same time Japan's 10th Army was storming Yuhuatai, a rugged plateau situated directly in front of Zhonghua Gate on Nanking's southern side. The 10th Army's progress was slow and casualties were heavy as Yuhuatai was built like a fortress of interlocking pillboxes and trenches manned by three Chinese divisions, including the German-trained 88th Division, though the Chinese were also apt to counterattack and some Japanese units were forced to spend more time defending than attacking. Close to every single man that the 88th Division had deployed on Yuhuatai was killed in action, including three of its four regimental commanders and both of its brigade commanders, but in the process the Japanese were made to suffer 2,240 casualties including 566 dead. Yuhuatai was finally overrun at noon on December 12.