Photos of the week - May 21-27, 2016

The most compelling images from the week's news, May 21-27, 2016.

Soon-to-be pinned 2nd Lt. Alix Schoelcher Idrache, with his face covered in tears, looks back at the crowd during the commencement ceremony at the U.S. Military Academy in West Point, May 21, 2016.

In seven years, Indrache went from speaking basic English in a working class neighborhood in Port-au-Prince to graduating from one of the most prestigious military and educational institutions in the United States.

This July, Idrache will enter the Army Aviation Center for Excellence at Fort Rucker, Alabama, as West Point's top-ranking graduate this year in physics. This July, Alix train to be a pilot at Fort Rucker, Alabama, as West Point's top-ranking graduate this year in physics.

By CBSNews.com Senior Photo Editor Radhika Chalasani

London - Chelsea Flower Show

The stigma of a Meconopsis 'Slieve Donard' is seen at the Chelsea Flower Show in London, May 24, 2016.

Topless Hillary supporters

Democratic presidential candidate Hillary Clinton takes a photo with supporters John Nelson, 32, (L) and Dan Stifler, 32, (C) after speaking at the UFCW Union Local 324 in Buena Park, California, May 25, 2016.

Ukrainian pilot releasaed

Ukrainian servicewoman Nadiya Savchenko reacts at Boryspil International airport outside Kiev, May 25, 2016.

Savchenko spent nearly two years in detention for Russian allegations she was involved in the killing of two Russian journalists in eastern Ukraine in 2014. She was convicted earlier this year, but was traded for Russian captivse.

Fleet Week

The wasp-class amphibious assault ship USS Bataan passes the Statue of Liberty as it arrives in New York Harbor to mark the beginning of Fleet Week in New York City, May 25, 2016.

Mount Sinabung

Primary school children wear masks while studying in the classroom in Karo district, North Sumatra province, on May 24, 2016, as Mount Sinabung is seen spewing out volcanic ash through the school window reflection.

Indonesian rescuers searched for survivors in scorched villages and devastated farmlands after the volcano erupted in clouds of searing ash and gas, killing seven and leaving others fighting life-threatening burns.

5000 Poppies Garden

A volunteer stands to the entrance of the 5000 Poppies Garden at the Chelsea Flower Show in London on May 23, 2016, the garden, created by Australians Lynn Berry and Margaret Knight is a tribute to their fathers who both fought in WWII.

The Chelsea flower show, held annually in the grounds of the Royal Hospital Chelsea, runs from May 24-28.

New Delhi - Plane crash

Indian bystanders and emergency personnel gather around the wreckage of an aircraft which crash landed in a field on the outskirts of New Delhi on May 24, 2016.

An air ambulance crash landed in a field near New Delhi airport on Tuesday, but all seven people on board survived, police said.

Obama in Vietnam

President Barack Obama speaks at the Young Southeast Asian Leaders Initiative town hall event in Ho Chi Minh City on May 25, 2016.

Obama urged communist Vietnam on May 24 to abandon authoritarianism, saying basic human rights would not jeopardize its stability, after Hanoi barred several dissidents from meeting Obama.

France - Giraffes

A giraffes nuzzles another giraffe at the African Reserve (Réserve Africaine ) of Sigean, southern France on May 24, 2016.

Migrants rescued off Libya

Migrants are seen on a capsizing boat before a rescue operation by Italian navy ships "Bettica" and "Bergamini" off the coast of Libya in this photo released on May 25, 2016.

Twenty two separate coast guard rescue operations were conducted in just one day involving the rescue of some 4,000 migrants in the Mediterranean.

Migrants rescued off Libya

Migrants protect themselves from the cold with blankets as they wait to arrive in the port of Cagliari, Sardinia on May 26, 2016, aboard the rescue ship "Aquarius" two days after their rescue off the Libyan coast.

California - Trump supporter

A supporter wearing a "Chinese Americans Love Trump" shirt takes the stage with other female Trump supporters at a campaign rally by the presumptive Republican presidential candidate , May 25, 2016 in Anaheim, California.

Several major news organizations, including CBS News, estimated that Trump had reached the 1,237 delegates needed for the Republican nomination this week.

France - Riot police

Riot police stand guard behind a fire as refinery workers hold a blockade of the oil depot of Douchy-Les-Mines to protest against the government's proposed labor reforms on May 25, 2016.

Refinery workers stepped up strikes that threaten to paralyze France as the government moved to break their blockades, escalating a three-month tug-of-war over labor reforms.

Obama in Vietnam

A man holds up a portrait of U.S. President Barack Obama as people line the streets to catch a glimpse of him on Obama's way to the airport at the end of a two-day visit to Ho Chi Minh City on May 25, 2016.

Obama fielded questions on May 25 on everything from rap and weed smoking to leadership and his good looks at a lively town hall-style meeting with young Vietnamese, who say the U.S. leader is a far cry from their staid Communist rulers.

China - College entrance exams

Senior high school students study at night to prepare for the college entrance exams at a high school in Lianyungang, east China's Jiangsu province, May 24, 2016.

The three-day 2016 college entrance exam starts on June 7.

Vietnam - Rescued whale

Hundreds of local inhabitants rescue a 15 meter-long and 2 meter-high whale swept offshore in the central coastal province of Nghe An on May 25, 2016.

The operation was successful after vehicles including an excavator were mobilized to create a canal enabling the return the alive whale to the sea. Vietnamese fishermen consider whales as the Nam Hai (South Sea) God which protect and support them in their daily life and at sea.

Auschwitz - X-ray picture

X-ray picture shows a mug with a gold ring hidden under a false bottom at the Auschwitz Birkenau State Museum in Oswiecim, Poland on May 6, 2016.

Japan - G7

(From L) German Chancellor Angela Merkel, U.S. President Barack Obama, Japanese Prime Minister Shinzo Abe and French President Francois Hollande participate in a tree planting ceremony at Ise-Jingu Shrine in the city of Ise in Mie prefecture, on May 26, 2016 on the first day of the G7 leaders summit.

World leaders kicked off two days of G7 talks in Japan on May 26 with the creaky global economy, terrorism, refugees, China's controversial maritime claims, and a possible Brexit headlining their packed agenda.

Mogadishu - Flooded streets

A man walks his donkey and its load through a flooded street in Beledweyne, north of Mogadishu on May 26, 2016.

Hundreds of families have been forced out of their homes following flash floods in Beledweyne after torrential rains pounded the area in the last few days. The heavy rains led to the bursting of River Shabelle which caused massive floods in residential areas along the river.

Arlington - U.S. flags

Members of the U.S. Army stock up on American flags before placing them at graves in Arlington National Cemetery on May 26, 2016 in Virginia in preparation for Memorial Day.

Hiroshima - Obama and Abe

U.S. President Barack Obama (R) puts his arm around Japanese Prime Minister Shinzo Abe after they laid wreaths in front of a cenotaph as the atomic bomb dome is background at Hiroshima Peace Memorial Park in Hiroshima, Japan, May 27, 2016.

Billboard Awards

Millennium Award recipient Britney Spears performs a medley of songs at the 2016 Billboard Awards in Las Vegas, May 22, 2016.

Greece - Migrants

A migrant boy carries his belongings during an evacuation operation by police of a makeshift migrant camp at the border at the Greek-Macedonian border near the village of Idomeni on May 24, 2016.

In an operation which began shortly after sunrise on May 24, hundreds of Greek police began evacuating the sprawling camp, currently home to 8,400 refugees and migrants, among them many families with children.

China - Dog swimming

A dog is pulled out of a pool after a dog swimming contest in Zhengzhou, Henan province, China on May 21, 2016.

Clown arrested

Orange County Sheriff's deputies arrest a protester near the Anaheim Convention Center, hosting a rally for Republican presidential candidate Donald Trump, Wednesday, May 25, 2016, in Anaheim, California.

EgyptAir crash debris

This picture posted Saturday, May 21, 2016, on the official Facebook page of the Egyptian Armed Forces spokesman shows part of a plane chair from EgyptAir flight 804.

Search crews found floating human remains, luggage and seats from the doomed EgyptAir jetliner Friday.

Cannes - Ken Loach

Director Ken Loach, Palme d'Or award winner for his film "I, Daniel Blake", poses during a photo call after the closing ceremony of the 69th Cannes Film Festival in France, May 22, 2016.

China - Hanging from rope

People slide down a rope from a bridge during a rescue training in Chongqing, China, May 22, 2016.

California - Bernie look-a-like

Ariella Reiss (L) poses while dressed as Democratic presidential candidate Bernie Sanders before a campaign rally in Santa Monica, California, May 23, 2016.

Vivid Sydney

A spectacular light display, called "Songlines," on Sydney Opera House's sails in Australia creates a kaleidoscope of colors as part of the world's largest festival of light, music and ideas -- "Vivid Sydney." The festival, that includes colorful projections across the city, opened May 27 and runs until June 18, 2016.

The opera house display includes a variety of projections featuring the work of indigenous artists on the sails of the Opera House.

Acquittal in death of Freddie Gray

Baltimore City Sheriff's Deputies surround and protect Baltimore Police Officer Edward Nero's family members as they leaves the Mitchell Courthouse-West after Nero was found not guilty on all charges against him related to the arrest and death of Freddie Gray May 23, 2016 in Baltimore, Maryland.

One of six police officers charged, Nero was found not guilty by Baltimore Circuit Judge Barry Williams in a bench trial.

Israeli soldiers

Israeli soldiers of the Search and Rescue brigade take part in a training session in Ben Shemen forest, near the city of Modi'in, May 23, 2016.

Tunisia - Jihadist

Photographs of Rahma (L), the wife of Noureddine Chouchane, a jihadist who was killed during a U.S strike in Libya, and her sister Gofran (R), are seen in a newspaper in Tunis, Tunisia April 14, 2016.

Tunisia's 2011 uprising created fertile ground for jihadist recruiters. Hundreds of Islamist militants were freed from prison as part of an amnesty for those detained under Ben Ali.

JR at the Louvre

People walk in front of the Louvre Pyramid covered with a giant photographic illusion by the French artist known as JR on May 19, 2016 in Paris.

The artist was invited by the Louvre, the largest museum in the world, to transform the Pyramid.

Angel of Turkey

Contestants prepare backstage during the Angel of Turkey transgender/transsexual beauty pageant in Istanbul, Turkey, late May 26, 2016.