Battle of Wuhan
Chiang Kai-shek's strategy of bringing the fight to Shanghai to force Japan to adopt an east-to-west direction of attack also prevented Japan from cutting right into Central China. As a result, the Battle of Wuhan was delayed for almost a year, and the time bought gave the Chinese government breathing space to recuperate and relocate more resources to Chongqing. Overall, even though Chinese losses were irreparable, the strategy of trading "space for time" proved its worth.