This has happened a couple of times now at the same point. This is the "Microsoft has encountered a problem and must close" crash.
It happens when the WORLD WAR ONE DAILEY NEWS is up on screen. It has happened for me on Rebellion and on Strike events. When I move the cursor over the page to click on one of the given options the Microsoft anouncement pops up and the game closes. Each time I restart and work my way back to the events phase new events happen and this screen does not always come up. I will start again and it does I will save at that point before moving the cursor and will post a zip.
An auto save would be nice maybe at the end of each military phase. plowing the same ground is tedious to say the least.