Participants carry torches during a torchlight procession in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





A man stands on the roof of one of buildings in the capital's main ceremonial square, before a mass dance and torchlight procession a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People participate in a mass dance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People react as they see North Korean leader Kim Jong Un during a mass rally and parade in the capital's main ceremonial square, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants leave the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants leave the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants leave the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Members of a military band stand by their instruments at the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Acrobats participate in a mass dance performance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants react as they see North Korean leader Kim Jong Un during a mass rally and parade in the capital's main ceremonial square, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants leave the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Uniformed participant dance during a mass rally and parade in the capital's main ceremonial square, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People participate in a mass dance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People react as they see North Korean leader Kim Jong Un during a mass rally and parade in the capital's main ceremonial square, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants carry torches during a torchlight procession in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Students carrying party flags shout slogans as they march past North Korean leader Kim Jong Un during a mass rally and parade in the capital's main ceremonial square, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Soldiers walk under pictures of former North Korean leaders Kim Il Sung and Kim Jong Il at the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People participate in a mass dance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Soldiers stand under pictures of former North Korean leaders Kim Il Sung and Kim Jong Il at the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Members of a military band rest by their instruments at the capital's main ceremonial square after a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People participate in a mass dance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Participants carry torches and a picture of former North Korean leader Kim Il Sung during a torchlight procession in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





A solider films military officers following a mass dance performance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Cameramen take position atop one of buildings in the capital's main ceremonial square during a mass rally and parade, a day after the ruling party wrapped up its first congress in 36 years by elevating him to party chairman, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Fireworks explode over participants carrying torches during a torchlight procession in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





People participate in a mass dance in the capital's main ceremonial square, a day after the ruling Workers' Party of Korea party wrapped up its first congress in 36 years, in Pyongyang, North Korea, May 10, 2016. (Photo by Damir Sagolj/Reuters)





Young girls walk by themselves without adults in Pyongyang, North Korea on May 9, 2016. It's not uncommon to see young kids walking in public alone in North Korea. Some Koreans say they have no worries that the streets or the people on them are unsafe. (Photo by Linda Davidson/The Washington Post)





Women dressed in military outfits dance with swords in a parade at Kim Il Sung Square in Pyongyang, North Korea on May 10, 2016. The parade and festivities tonight mark the culmination of the Seventh Congress of the Workers' Party which ended yesterday. The Party cemented Kim Jong Un's leadership and yesterday named him as Party Chairman. He attended today's parade waving from a balcony to a roaring crowd of worshipers. (Photo by Linda Davidson/The Washington Post)





Detail photo of the flowers and balloons that many Korean women will walk with in a parade at Kim Il Sung Square in Pyongyang, North Korea on May 10, 2016. (Photo by Linda Davidson/The Washington Post)





Dancers and gymnasts take center stage at an evening patriotic program in Kim Il Sung Square in Pyongyang, North Korea on May 10, 2016. (Photo by Linda Davidson/The Washington Post)





Juche Tower painted red during with fireworks at an evening patriotic program in Kim Il Sung Square in Pyongyang, North Korea on May 10, 2016. The day was full of two patriotic parades marking the culmination of the Seventh Congress of the Workers' Party which ended yesterday. The Party cemented Kim Jong Un's leadership and yesterday named him as Party Chairman. He attended today's dayside parade waving from a balcony to a roaring crowd of worshipers. This evening, a dance and torch parade complete with fireworks and 40,000 people dancing in uniform movement. (Photo by Linda Davidson/The Washington Post)





Fireworks explode over the Kim Il Sung Square during a parade on Tuesday, May 10, 2016, in Pyongyang, North Korea. Hundreds of thousands of North Koreans celebrated the country's newly completed ruling-party congress Tuesday with a massive civilian parade featuring floats bearing patriotic slogans and marchers with flags and pompoms, and celebrations followed on into the evening with a torchlight parade and mass dance party by youths. (Photo by Wong Maye-E/AP Photo)





North Korean women tie flags as they decorate the streets in downtown Pyongyang, North Korea Saturday, May 7, 2016. North Korean leader Kim Jong Un hailed his country's recent nuclear test to uproarious applause as he convened the first full congress of its ruling party since 1980, an event intended to showcase the North's stability and unity in the face of tough international sanctions and deepening isolation. (Photo by Wong Maye-E/AP Photo)





People listen to North Korean leader Kim Jong Un speak at the party congress during a television broadcast on a public screen near the Pyongyang train station on Sunday, May 8, 2016, in Pyongyang, North Korea. North Korean leader Kim Jong Un said during a critical ruling party congress that his country will not use its nuclear weapons first unless its sovereignty is invaded, state media reported. (Photo by Kim Kwang Hyon/AP Photo)





Participants wait to take part in a mass parade marking the end of the 7th Workers Party Congress in Kim Il-Sung square in Pyongyang on May 10, 2016. North Korea kicked off a massive parade in the centre of Pyongyang on May 10 to celebrate a just-concluded ruling party congress that was seen as a formal coronation for supreme leader Kim Jong-Un. (Photo by Ed Jones/AFP Photo)





Performers take part in a mass dance on Kim Il-Sung square following a parade to mark the end of the 7th Workers Party Congress in Kim Il-Sung square in Pyongyang on May 10, 2016. (Photo by Ed Jones/AFP Photo)





North Korean youths participate in a mass dance party on the Kim Il Sung Square on Tuesday, May 10, 2016, in Pyongyang, North Korea. Hundreds of thousands of North Koreans celebrated the country's newly completed ruling-party congress Tuesday with a massive civilian parade featuring floats bearing patriotic slogans and marchers with flags and pompoms, and celebrations followed on into the evening with a torchlight parade and mass dance party by youths. (Photo by Wong Maye-E/AP Photo)





A participant cries as she takes part in a mass parade marking the end of the 7th Workers Party Congress in Kim Il-Sung square in Pyongyang on May 10, 2016. North Korea kicked off a massive parade in the centre of Pyongyang on May 10 to celebrate a just-concluded ruling party congress that was seen as a formal coronation for supreme leader Kim Jong-Un. (Photo by Ed Jones/AFP Photo)