We have made a small change with regards to the clearing of the units at the end of a battle round. It remains unchanged that a maximum of 50% of units can be defeated in a battle round. However, the order in which the unit groups are cleared has been optimized: 

The habitat with the smallest amount of units in a battle will be cleared first.

In the past, the habitat with the largest amount of participating units was selected first. This has led to many 1 unit armies that remained in the battles for a long time.