[Escaflowne]

13. The race you just discovered defile your religions holy places.
14. An other empire claims your religious talisman is "A curious looking toy."
15. You ally with the two strongest factions and get them to waste their time and attention on each other, allowing you to send fleets into all of their systems and cripple them both in one turn.
16. Another races chemical emissions are threatening your homeworld's environment.
17. You have been deposed in a coup and the government upsurped by the military.
18. You require more 'labensruam' (living room).
19. The other race is so ugly you kill them to preserve your sanity.
20. The other race is so stupid it's not war, it's 'clorinating the gene pool'.
21. Public opinion demands it.
22. They insult your ancestors, honor demands it.
23. You have a 'Manifest Destiny'.