By Monday, Read Wasserstrom on Republic of China, pp. 38-49. Some will be repetitive, but the Long March section to the end is new. (Note this is the book you used for the Opium War to Fall of Qing. You downloaded it last week. Here's an extract of just the assiged pages, if you want it.)
Also watch these clips:
1. The Long March Part One:
2. The Long March, Part Two: Crossing the Grasslands (this is just horrifying)
WW II: Japan Invades: Xi'an Incident: : Should Chiang have fought Japan?
Japan's "Rape of Nanking"
Japan's "Burn All, Kill All, Loot All" campaign (The "Three Alls" Campaign) and the Second United Front (stop at 8.40)