(1) The militia of the state shall be divided into the organized militia and the unorganized militia.
(2) The organized militia shall be composed of the Oregon Army National Guard and the Oregon Air National Guard, which forces together with an inactive National Guard shall comprise the Oregon National Guard; the Oregon Civil Defense Force whenever such a force shall be duly organized; and such additional forces as may be created by the Governor.
(3) The unorganized militia shall consist of all able-bodied residents of the state between the ages of 18 and 45 who are not serving in any force of the organized militia or who are not on the state retired list and who are or who have declared their intention to become citizens of the United States; subject, however, to such exemptions from military duty as are created by the laws of the United States.