How many movies have Jiang Xiande and Mu Xiao collaborated on?

They have worked on 4 movies together! Their first movie together was Bashan er nu (1984) while their highest rated movie together was Decisive Engagement: The Liaoxi Shenyang Campaign (1991). They have not worked together since Decisive Engagement: The PingJin Campaign (1992). They are most known for their war films together.