factions fighting with each other in my base and chief blames me

[asquirrel]

That ever happen to you folks?  I'm not even anywhere near this and all of a sudden Talon Company and Federation just start blasting each other inside my base.  Bodies everywhere.  I found a couple of barely alive troopers and nursed them back to health.  But the chief hit me with a -5 penalty for like three of his guys getting wasted.  Not sure which faction blamed me.  WTH?  Not my fault they don't like each other.  What can I do to stop this from happening?  Put the trading / meeting spot way off base; preferably in an area where there's a lot of predatory animals?