U.S. President Donald Trump meets with France's President Emmanuel Macron, ahead of the NATO summit in Watford, in London, Britain, December 3, 2019. (Photo by Ludovic Marin/Pool via Reuters)





Protesters hold placards and ballots as they attend a demonstration during U.S. President Donald Trump's visit for NATO summit, in London, Britain on December 3, 2019. (Photo by Henry Nicholls/Reuters)





Britain's Prince Charles, Prince of Wales (R), US President Donald Trump (C) and US First Lady Melania Trump (L) talk as they pose for photographs at Clarence House in central London on December 3, 2019, ahead of the NATO alliance summit. NATO leaders gather Tuesday for a summit to mark the alliance's 70th anniversary but with leaders feuding and name-calling over money and strategy, the mood is far from festive. (Photo by Chris Jackson/Pool/AFP Photo)





Police officers patrol Trafalgar Square ahead of a planned demonstration against the NATO summit and U.S. President Donald Trump's visit, in London, Tuesday, December 3, 2019. Trump and his NATO counterparts were gathering in London Tuesday to mark the alliance's 70th birthday amid deep tensions as spats between leaders expose a lack of unity that risks undermining military organization's credibility. (Photo by Guy Bell/Rex Features/Shutterstock)





Crowds of people marched from Trafalgar Square to Buckingham Palace in protest of military activity of US President Donald Trump with support of NATO during an official diner at Buckingham Palace on the first day of the 70th NATO summit in London, England on December 3, 2019. Such issues as Turkish war on Kurds, displacement of indigenous people in Bolivia, occupation in Palestine and domestic problem of privatisation of NHS were risen during the protest. (Photo by Guy Bell/Rex Features/Shutterstock)





U.S. President Donald Trump grimaces during a meeting with NATO Secretary General, Jens Stoltenberg at Winfield House in London, Tuesday, December 3, 2019. US President Donald Trump will join other NATO heads of state at Buckingham Palace in London on Tuesday to mark the NATO Alliance's 70th birthday. (Photo by Evan Vucci/AP Photo)





Riot policemen ride horses to disperse demonstrators during a protest against Chile's government in Concepcion, Chile on December 2, 2019. (Photo by Jose Luis Saavedra/Reuters)





A demonstrator massages a man near riot policemen during a protest against Chile's government at Plaza Italia in Santiago, Chile on December 2, 2019. (Photo by Pablo Sanhueza/Reuters)





Riot policemen detain a demonstrator during a protest against Chile's government, at Providencia, a wealthy neighbourhood, in Santiago, Chile on December 3, 2019. (Photo by Pablo Sanhueza/Reuters)





Aftab Tariq, 27, from Pakistan, takes a shower at the Vucjak refugee camp outside Bihac, northwestern Bosnia, Tuesday, December 3, 2019. A top European human rights official has demanded immediate closure of a migrant camp in Bosnia where hundreds of people have refused food and water to protest lack of protection in snowy and cold weather. (Photo by Darko Bandic/AP Photo)





A migrant walks covered with a plastic bag at the Vucjak refugee camp outside Bihac, Bosnia and Herzegovina, 02 December 2019 (issued 03 December 2019. According to local media, hundreds of people remain at the camp even after International officials called for it to be shut down. (Photo by Jean-Christophe Bott/EPA/EFE)





Climate activist Greta Thunberg waves as she arrives in Lisbon aboard the sailboat La Vagabonde Tuesday, December 3, 2019. Thunberg has arrived by catamaran in the port of Lisbon after a three-week voyage across the Atlantic Ocean from the United States. The Swedish teen sailed to the Portuguese capital before heading to neighboring Spain to attend the U.N. Climate Change Conference taking place in Madrid. (Photo by Pedro Rocha/AP Photo)





A police robot patrols at Changchun Railway Station on December 2, 2019 in Changchun, Jilin Province of China. The police robot can patrol, monitor and also can recognize passengers' faces to compare with the faces of the escaped criminals. (Photo by VCG/VCG via Getty Images)





Cate Blanchett on stage during The Fashion Awards 2019 held at Royal Albert Hall on December 02, 2019 in London, England. (Photo by Lia Toby/BFC/Getty Images)





Svetlana Zakharova performs in Mauro Bigonzetti's “Come Un Respiro” at The London Coliseum on December 02, 2019 in London, England. (Photo by Robbie Jack/Corbis via Getty Images)





Performers of Everland Amusement Park present the part of Christmas Fantasy in downtown of Myundong in Seoul, South Korea on December 3, 2019. (Photo by Seokyong Lee/Penta Press/Rex Features/Shutterstock)