The leaders of North and South Korea agreed Friday to pursue a permanent peace and the complete denuclearization of the divided peninsula, as they embraced after a historic summit laden with symbolism.

Moon seized on the South's Winter Olympics as an opportunity to broker dialogue between them, and has said his meeting with Kim will serve to set up the summit between Pyongyang and Washington.

In the past, North Korean support for denuclearization of the "Korean peninsula" has been code for the removal of U.S. troops from the South and the end of its nuclear umbrella over its security ally -- prospects unthinkable in Washington.

After a morning session lasting an hour and 40 minutes, Kim crossed back to the North for lunch, a dozen security guards jogging alongside his limousine.

The soil came from Mount Paektu, on the North's border with China, and Mount Halla, on the South's southern island of Jeju.

After signing the agreement the leaders and their wives attended a banquet before Kim was to return to the North.

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