23 Of The Most Powerful Photos Of This Week

President Donald Trump, along with first lady Melania Trump, greets Kim Sang-duk, Kim Hak-song, and Kim Dong-chul, three Americans detained in North Korea for more than a year, as they arrive at Andrews Air Force Base in Maryland on May 10.

The crowd cheers as Vice President Mike Pence introduces President Donald Trump at the North Side Gymnasium in Elkhart, Indiana, on May 10, during a campaign rally.

Iranian demonstrators burn representations of the US flag during a protest in front of the former US Embassy on May 9, in Tehran, Iran. The protests were in response to President Donald Trump's decision to pull out of the nuclear deal and renew sanctions.

US first lady Melania Trump announces her "Be Best" children's initiative in the Rose Garden of the White House on May 7.

Members of US Capitol Police arrest protester and former CIA officer Ray McGovern during a confirmation hearing for CIA director nominee Gina Haspel on May 9, in Washington, DC. If confirmed, Haspel will succeed Mike Pompeo to be the next CIA director.

Central Intelligence Agency Deputy Director Gina Haspel is sworn in before the Senate Intelligence Committee during her confirmation hearing to become the next CIA director on May 9, in Washington, DC.

An ash plume rises from the Halemaumau crater within the Kilauea volcano summit caldera at the Hawaii Volcanoes National Park on May 9. The volcano has spewed lava and high levels of sulfur dioxide gas into communities, leading officials to order 1,800 people to evacuate.

In this handout photo provided by the US Geological Survey, a lava flow moves on Makamae Street after the eruption of Hawaii's Kilauea volcano on May 6, in the Leilani Estates subdivision near Pahoa, Hawaii.

Primary school students take part in an earthquake drill ahead of the 10th anniversary of the 2008 Sichuan earthquake, inside a classroom in Handan, China, on May 11.

Russian President Vladimir Putin walks before an inauguration ceremony at the Kremlin in Moscow, Russia, on May 7.

Police officers detain an opposition supporter during a protest ahead of President Vladimir Putin's inauguration ceremony in Moscow, Russia, on May 5.

Migrants, part of a group of people intercepted aboard a dinghy off the coast in the Mediterranean Sea, rest after arriving on a rescue boat at the port of Malaga, Spain, on May 8.

A man carries a child dressed in ceremonial outfit during the changing of the guard outside Windsor Castle in Windsor, England,on May 8, as the town continues its preparations for the wedding of Prince Harry and Meghan Markle.

Local residents carry portraits of their ancestors who participated in World War II, as they celebrate the 73rd anniversary of the defeat of the Nazis in St. Petersburg, Russia, on May 9.

Fans dressed as Darth Vader and Chewbacca take a boat trip to the Skellig Islands on May 4, in Portmagee, Ireland.

Katy Perry attends the "Heavenly Bodies: Fashion and the Catholic Imagination" Costume Institute Gala at the Metropolitan Museum of Art on May 7, in New York City.

Stormy Daniels makes an appearance during the opening skit of Saturday Night Live on May 5.

Mike Smith rides Justify to victory during the 144th running of the Kentucky Derby horse race at Churchill Downs racetrack on May 5, in Louisville, Kentucky.

A rider on his ox during a race on May 10, in Taufkirchen, Germany.

Zucca, a labrador retriever therapy dog, accompanies a child during a dentist's session in a public hospital as part of a program to calm children's fears in the dentist chair, in Santiago, Chile, on May 8.

Engineered Arts prosthetic expert Mike Humphrey checks on Fred, a recently completed Mesmer robot, on May 9, in Cornwall, England. Founded in 2004, the Cornish company is a world leader in life-sized commercially available humanoid robots for entertainment, information, education, and research.

A man walks with flowers during an event to commemorate the victims of Nazism in World War II, at the memorial in Salaspils, Latvia, on May 8.

Ana Sergejevna Blinova, an 95 -year-old veteran of World War II, receives flowers at the Antakalnis cemetary memorial during Victory Day celebrations in Vilnius, Lithuania, on May 9.