The main purpose of this legislative text is to direct the removal of U.S. Armed Forces from any military actions within or against Cuba that have not been explicitly authorized by Congress. The resolution emphasizes the constitutional powers of Congress to declare war and aims to ensure that military engagements are conducted in accordance with this principle. Key provisions of the resolution include a directive for the President to withdraw U.S. military forces from hostilities involving Cuba unless there is a formal declaration of war or specific authorization for military action.