Jan 11th 2012, 0:01:59
ag·gres·sion
/əˈgrɛʃən/ Show Spelled[uh-gresh-uhn] Show IPA
noun
1.
the action of a state in violating by force the rights of another state, particularly its territorial rights; an unprovoked offensive, attack, invasion, or the like: The army is prepared to stop any foreign aggression.
2.
any offensive action, attack, or procedure; an inroad or encroachment: an aggression upon one's rights.
3.
the practice of making assaults or attacks; offensive action in general.
4.
Psychiatry . overt or suppressed hostility, either innate or resulting from continued frustration and directed outward or against oneself.
You can spin that however you want but I would consider FAing an alliances enemy aggression and an act of war. Especially since there had been quite a bit of taunting right along with it.