(FILES) Russian President Vladimir Putin welcomes North Korean leader Kim Jong Un prior to their talks at the Far Eastern Federal University campus on Russky island in the far-eastern Russian port of Vladivostok on April 25, 2019. North Korea\'s leader Kim Jong Un departed Pyongyang on September 12, 2023 on a train to Russia where he is due to hold a rare meeting with President Vladimir Putin, state media reported early September 12, 2023. (Photo by Alexander Zemlianichenko / POOL / AFP)