A declaration of war. No matter what, no matter when such acts would have terrible consequences. Land, power, survival, money, or retaliation the reasons were many but the consequences were always the same. Death, sorrow, loss, and ultimately destruction, and the lunatic stepping on the count just declared that he would start one.
The insanity of it all started to dawn on the representatives of the allied empires. Quickly they started rebuking Hiro in an attempt to stop him. If this person was righteous he should detest war at least right?
"Are you insane? You would start a war with three kingdoms all for what? An Insult to your wives?"