I- A political theory derived from Karl Marx, advocating class war and leading to a society in which all property is publicly owned and each person works and is paid according to their abilities and needs.
M- In background
S- The US wanted the media there to show them fighting communism.
I- The Great Leap Forward was a push by Mao Zedong to change China from a predominantly agrarian (farming) society to a modern, industrial society in just five years.