 Complete the following phrase:  After 1949, Kunming developed rapidly into an industrial metropolis with the construction of large iron and steel and chemical complexes, along with Chongqing, Chengdu and Guiyang in the southwest. A Minorities Institute was set up in the 1950s to promote mutual understanding and access to university education among Yuns multiethnic population. The city consolidated its position as a supply depot during the Vietnam War and subsequent 