The document summarizes U.S.-Cuba relations and sanctions over the past 50 years. It outlines the timeline of sanctions and policies under different administrations. While initially imposed for national security reasons during the Cold War, the sanctions have had little impact on Cuba's regime but have strengthened Castro's power. Present-day Cuba is no longer a threat, but the issue remains politicized. Removing sanctions could open a $1 billion agricultural market for the U.S. and improve relations with allies opposed to the embargo.