 Within a year strong differences between the Christian Feng and Japanese-backed Zhang would cause both to solicit their recent Zhili enemies as allies, and by November 1925 the Zhili clique had thrown its support behind Zhang.Feng managed the defection of Guo Songling (who continued to smart over his treatment during the Nine Gates battle) from the Fengtian clique, sparking the Anti-Fengtian War that lasted until April 1926.It would lead to the collapse of the provisional government.