President Trump on Sunday became the first sitting U.S. president to step foot on North Korean soil. Trump met North Korean leader Kim Jong Un at the demilitarized zone between North and South Korea, where the two leaders shook hands before Kim invited Trump to cross the boundary into North Korea. Trump said it was an "honor" to enter the country. The two then met for close to an hour, and reportedly reached an agreement to rekindle negotiations over North Korea's denuclearization process, which stalled after two previous meetings between Trump and Kim. Trump said he spontaneously decided to ask on Saturday whether Kim would be willing to meet while Trump was in Seoul for a scheduled visit with South Korean President Moon Jae-in.

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