The main purpose of this legislative text is to direct the removal of U.S. Armed Forces from any military actions involving Cuba that have not been specifically authorized by Congress. It emphasizes the constitutional roles of Congress and the President regarding military engagement, asserting that only Congress has the authority to declare war. Key provisions of this resolution include a directive for the President to withdraw U.S. military forces from hostilities with Cuba unless there is a formal declaration of war or specific authorization for military action.