If you try really hard, you could probably get them mad enough to declare war.
Of course, you could always do an Intel op, and send a fake message, getting them to declare war on you
Woah, that could probably be exploited. Keep sending Intel ops to your enemy, getting him to declare war multiple times... If you're a bloodthirsty race, your people will go Jubilant!
[This message has been edited by suicide_junkie (edited 07 June 2001).]