Preparations for a Russia - North Korea summit at the Far Eastern Federal University (FEFU) on Russky Island on Thursday.
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Russian officers carry briefcases that appear to contain nuclear launch codes as Russian President Vladimir Putin arrives for talks with North Korea's leader Kim Jong Un in Vladivostok, Russia, Thursday, April 25.
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North Korean leader Kim Jong Un gets out of a car as he arrives for a meeting with Russian President Vladimir Putin at the Far Eastern Federal University campus on Russky Island in Vladivostok, Russia.
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North Korea's leader Kim Jong Un, center, arrives for talks with Russian President Vladimir Putin, in Vladivostok, Russia, on Thursday, April 25.
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North Korean Leader Kim Jong Un, left, and Russia's President Vladimir Putin shake hands during a meeting at the Far Eastern Federal University (FEFU) on Russky Island, on Thursday.
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South Koreans watch a television broadcast reporting the meeting of North Korean Leader Kim Jong Un and Russian President Vladimir Putin, at the Seoul railway station on Thursday, April 25 in Seoul, South Korea.
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North Korean Leader Kim Jong Un, left, and Russia's President Vladimir Putin shake hands during a meeting at the Far Eastern Federal University (FEFU) on Russky Island, on Thursday, April 25.
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Russian President Vladimir Putin, right, and North Korea's leader Kim Jong Un pose for photographers during their meeting in Vladivostok, Russia, on Thursday.
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North Korean leader Kim Jong Un and members of the Russian and North Korean delegations hold talks at the Far Eastern Federal University campus on Russky Island in the far-eastern Russian port of Vladivostok on Thursday, April 25.
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Russian President Vladimir Putin meets with North Korean leader Kim Jong Un at the Far Eastern Federal University campus on Russky Island on Thursday.
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A commemorative medal during a reception on behalf of Russia's President Vladimir Putin following Russian and North Korean talks at the Far Eastern Federal University (FEFU) on Russky Island on Thursday, April 25.
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North Korean leader Kim Jong Un, left, and Russia's President Vladimir Putin during a reception on behalf of Russia's President following Russian and North Korean talks at the Far Eastern Federal University (FEFU) on Russky Island on Thursday, April 25.
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Russian and North Korean flags are seen along a road prior to the meeting of North Korean leader Kim Jong Un and Russian President Vladimir Putin on Russky Island in Vladivostok, Russia, on Thursday.
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Snipers are deployed on the roof of the Sports Center of Far Eastern Federal University in Vladivostok, Russia, ahead of the summit between North Korean leader Kim Jong Un and Russian President Vladimir Putin, on Thursday, April 25.
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Summit officials from North Korea and Russia lay a red carpet at the railway station in Russia's far eastern city of Vladivostok on Wednesday, April 24, ahead of North Korean leader Kim Jong Un's arrival there for a summit with Russian President Vladimir Putin.
Yonhap News/Newscom via ZUMA Press
A train carrying North Korean leader Kim Jong Un runs in Khasan, a Russian border city with North Korea, on Wednesday, April 24, on its way to Vladivostok where Kim will hold his first summit with Russian President Vladimir Putin.
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Journalists of the North Korean leader pool are seen at a railway station in Vladivostok during North Korean leader Kim Jong Un's visit.
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Honor guard soldiers prepare for a welcome ceremony for North Korean leader Kim Jong Un near a railway station in Vladivostok, Russia, on Wednesday, April 24.
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North Korean leader Kim Jong Un disembarks from a train during a welcoming ceremony at a railway station in the far eastern settlement of Khasan, Russia Wednesday, April 24.
Vladivostok Press Center/Handout/Reuters
North Korean security staff members run with a car carrying leader Kim Jong Un at Vladivostok Station on Wednesday, April 24, in Vladivostok, Russia.
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North Korean leader Kim Jong Un walks past honor guards during a welcoming ceremony upon arrival at the railway station in the far eastern Russian port of Vladivostok on Wednesday April 24.
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Locals and members of the media gather behind a monument to the Soviet Union founder Vladimir Lenin to watch a welcoming ceremony for North Korean leader Kim Jong Un in Vladivostok, Russia, on Wednesday, April 24.
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North Korean leader Kim Jong Un, center, receives bread and salt on his arrival at Khasan train station, Primorsky Krai region, Russia, on Wednesday, April 24.
Korean Central News Agency via AP
Workers hang the North Korean and Russian flags on a road leading to the Far Eastern Federal University on Wednesday, April 24, in advance of the summit between North Korean leader Kim Jong Un and Russian President Putin.
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