The law passes if, after 24 hours, it has a simple majority of "Yes" votes. After passing the law, a new war will be opened with the country war was declared to. The declarer has 24 hours to attack, else, at the end of the 24 hours time, a battle will be automatically started in one of the attackable regions.
War can be declared only if a country shares a common border with the country they want declare war to.
Countries having an active mutual protection pact can't declare war on each other.
CostDeclaration of war: