Is he as dark as his eyes?

Two people fated to wrangle. Couples that are born in different kinds of empery, they range to kill those who against their presidency. They are the leader of each empery and kills a lot of organizations just to have them as their men and soldiers. They are the most influential and strongest but when theyface each other as an enemy will they risk their presidency just to gain the happiness that they wanted to commit or will they fight to the extent that one of them will die?Will they sign or will they continue the warfare between them? So is it a Sign or Die?