 Since Zhili was so close to Peking (Beijing), the capital, it was the site of frequent wars, including the Zhiwan War, the First Zhifeng War and the Second Zhifeng War.With the success of the Northern Expedition, a successful campaign by the Kuomintang to end the rule of the warlords, the capital was moved from Peking (Beijing) to Nanking (Nanjing).As a result, the name of Zhili was changed to Hebei to reflect the fact that it had a standard provincial administration, and that the capital had been relocated elsewhere.