Battle Casualties Not Adding Up?

[CSL]

Lovely game - just getting into it now, but one question. In my first major battle, First Manassas of course, I got this as a battle report.




Now as you can see the casualties caused and the casualties taken don't add up at all - why?

[ericbabe]

Not all casualties taken are caused by other units specifically, some casualties are lost during the "pursuit" phase after combat.  Both the winning and losing side of combat take "pusuit" losses, though the side that loses takes many more pursuit losses.