The Governor of Alaska is the chief executive of the State of Alaska. The governor is the commander-in-chief of the state's military forces (including the Alaska National Guard and Alaska State Defense Force), The governor is also the head of the executive branch of Alaska's state government and has a duty to enforce state laws, and the power to either approve or veto bills passed by the Alaska Legislature, to convene the legislature, and to grant pardons, except in cases of impeachment.