I decided I was going to invade the Drath in my last game, and I felt comfortable since I had three allies already (in a universe of 9 players). So I invaded.
Then all heck broke loose.
I invaded them, so thier ally (Iconions) declared war on me, so my allies declared war on him, so his (the Iconion) allies (the Altarins) declared war on them, so I declared war on Altarians (to honor the alliance)...
By the time it was over there were twelve declarations of war on the screen, all on one turn becuase I went to war with one race. Instantly the peaceful galaxy was thrown into absolute chaos, the only races not involved were the Humans and Yor. It was the coolest thing I have yet seen in the game. I reloaded it just so I could do it again!