 China believed the Burma theater to be far more important for Japan than southern China and that Japanese forces in southern China would continue to assume a defensive posture only.China believed the initial Japanese attack in Ichigo to be a localized feint and distraction in northern China so Chinese troops numbering 400,000 in North China deliberately withdrew without a fight when Japan attacked, assuming it was just another localized operation after which the Japanese would withdraw.This mistake led to the collapse of Chinese defensive lines as the Japanese soldiers which eventually numbered in the hundreds of thousands kept pressing the attack from northern China to central China to southern China's provinces as Chinese soldiers deliberately withdrew leading to confusion and collapse, except at the Defense of Hengyang where 17,000 outnumbered Chinese soldiers held out against over 110,000 Japanese soldiers for months in the longest siege of the war inflicting 19,000-60,000 deaths on the Japanese.