In many nations, power is given to the head of state or sovereign; in other cases, something short of a full declaration of war, such as a letter of marque or a covert operation, may authorise war-like acts by privateers or mercenaries.
Power is given to the head of state or sovereign. This was in many nations. Something short of a full declaration of war may authorise war-like acts by privateers or mercenaries. This is in other cases. This is such as a letter of marque. This is such as a letter of a covert operation.