Two thousand three hundred police officers throw their caps in the air after they took their oath of allegiance to the state constitution in the Lanxess Arena in Cologne, Germany, 03 April 2019. The young policemen and policewomen were hired on 01 September 2018 and completed the first phase of their training. (Photo by Sascha Steinbach/EPA/EFE)





A Venezuelan migrant, cradling a baby, walks along an avenue where she asks drivers for their spare change, in Bogota, Colombia, Thursday, April 4, 2019. According to U.N. children's agency UNICEF, as a result of the Venezuela migrant crisis, 1.1 million children will need help across Latin America and the Caribbean in 2019. (Photo by Fernando Vergara/AP Photo)





Kashmiri Muslims pray as a cleric displays a holy relic, believed to be a hair from the Prophet Muhammad's beard, during the celebrations for Miraj-Ul-Alam (ascension to heaven) at Kashmir's main Hazratbal shrine in Srinagar on April 4, 2019. Thousands of Muslims converge annually for celebrations at the shrine near the summer capital, Srinagar, of the Jammu and Kashmir state. (Photo by Tauseef Mustafa/AFP Photo)





In this photo taken on Wednesday, April 3, 2019, a Russian solder stands guard as Pansyr-S1 air defense system on the Kotelny Island, part of the New Siberian Islands archipelago located between the Laptev Sea and the East Siberian Sea, Russia. Russia has made reaffirming its military presence in the Arctic the top priority amid an intensifying international rivalry over the region that is believed to hold up to one-quarter of the planet's undiscovered oil and gas. (Photo by Vladimir Isachenkov/AP Photo)





In this photo taken on Wednesday, April 3, 2019, a Russian military snowmobile moves on Kotelny Island , part of the New Siberian Islands archipelago located between the Laptev Sea and the East Siberian Sea, Russia. (Photo by Vladimir Isachenkov/AP Photo)





This undated picture released by North Korea's official Korean Central News Agency (KCNA) on April 4, 2019 shows North Korean leader Kim Jong-Un (C) inspecting Samjiyon County. (Photo by KCNA via KNS/AFP Photo)





Sam Rogers, flight suit design engineer at Gravity Industries, demonstrates a Jet Suit at the Intrepid Sea, Air & Space Museum in New York, U.S., April 3, 2019. (Photo by Brendan McDermid/Reuters)





Deutsche Post DHL postwoman Andrea Bunar, Germany's only postwoman to deliver the mail by boat from April until October, delivers post using a traditional boat in the Spreewald village of Lehde, Germany, April 4, 2019. (Photo by Hannibal Hanschke/Reuters)





People attend a test flight for Ehang 216, a two-seater autonomous aerial vehicle of drone maker EHang in Vienna, Austria April 4, 2019. China's EHANG and Austrian FACC AG plan to produce 300 Taxi drones by 2020. (Photo by Leonhard Foeger/Reuters)





In this Tuesday, April 2, 2019 file photo, an employee of KT Corp. demonstrates with a 5G services available on smarpthone during a press conference on 5G service at its the headquarters in Seoul, South Korea. South Korea's telecommunications carriers on Wednesday, April 3, have turned on super-fast 5G mobile internet networks abruptly ahead of schedule in an attempt to ensure the country becomes the first in the world to launch the services. (Photo by Ahn Young-joon/AP Photo/File)





A visitor goes upstairs during the press preview prior to the opening of the new Bauhaus Museum of the “Klassik Stiftung Weimar” (Classic Foundation Weimar) in Weimar, Germany, Thursday, April 4, 2019. The museum designed by Berlin-based architect Heike Hanada will focus on the early Bauhaus that was founded in Weimar in 1919 and stayed there until 1925. The official opening of the new Bauhaus Museums will take place on Friday, April 5, 2019. (Photo by Jens Meyer/AP Photo)





Visitors at the work “Add colour painting (Refugee boat)” of the Japanese-American artist Yoko Ono during the opening of the exhibition “PEACE is POWER” in the Museum of the Fine Arts (Museum der bildenden Kuenste) in Leipzig, Germany, 03 April 2019. Yoko Ono presents her most extensive exhibition of works in Leipzig since her retrospective in the Schirn Kunsthalle in Frankfurt five years ago. (Photo by Jens Schlüter/EPA/EFE)





Sophie Turner (Sansa Stark) and George R. R. Martin attend the “Game Of Thrones” Season 8 NY Premiere on April 3, 2019 in New York City. (Photo by Jeff Kravitz/FilmMagic for HBO)





In this photo taken on Friday March 29, 2019, tourists wearing mankinis travel in a horse cab in Market Square in Krakow, Poland. Police in southern Poland say they are investigating four English-speaking tourists spotted last week in Krakow wearing only mankinis, as worn by Borat, the fictional Kazakh alter ego of comic actor Sacha Baron Cohen. If convicted, the men could face up to 30 days in custody or fines of 5,000 zlotys ($1,300) each. (Photo by Czarek Sokolowski/AP Photo)





Candidates for Binibining Pilipinas 2019 (Miss Philippines) pageant pose for pictures beside a swimming pool during a press presentation at a hotel in Quezon City, east of Manila, Philippines, 04 April 2019. A total of 40 candidates will be vying for the Miss Philippines crown on 09 June, with one winner being given the opportunity to compete in the Miss Universe pageant. (Photo by Rolex Dela Pena/EPA/EFE/Rex Features/Shutterstock)





Dancers dressed as Star Wars characters stormtroopers and Darth Vader perform on stage during “Empire Strips Back” show in Los Angeles, California, 03 April 2019. The “Empire Strips Back” is a burlesque parody of the Star Wars movies. (Photo by Etienne Laurent/EPA/EFE/Rex Features/Shutterstock)