Securing a prisoner swap agreement marks progress but big gaps remain on core conflict issues, says an international relations observer. PYEONGTAEK, South Korea: Last week, Russian and Ukrainian ceasefire negotiators met face-to-face for the first time since March 2022. The location for the talks was the same as three years ago, some of the negotiators were the same, but the circumstances were vastly different from what they were. Before, the full-scale invasion was barely a month old, the two