In a move that blurs the line between diplomacy and transaction, President Trump has quietly reduced joint military exercises with South Korea while claiming renewed personal dialogue with Kim Jong Un — tying America's defensive commitments to allied participation in operations against Iran. The decision surfaces an enduring tension in American foreign policy: whether alliances are sacred obligations or negotiable arrangements. As North Korea stays silent and critics warn of emboldened rivals, the peninsula once again becomes a mirror for the larger question of what American power is ultimatel