WARSAW

This is achievement is awarded for failing to make it to Day 63 with a surviving district. Depending on the difficulty you elect to play, you may run across it naturally. However if you want to force the outcome, I would recommend taking a mission and immediately retreating once it is loaded. Losing will decrease district morale and up the attrition level. Continue repeating this until all the districts fall. Once they do, the achievement will be yours.