Scotland's First Minister and leader of the Scottish National Party, Nicola Sturgeon, attends a motion of condolence for late Britain's Prince Philip in Edinburgh, Scotland, Britain April 12, 2021. Jeff J Mitchell/Pool via REUTERS

U.S. Defence Secretary Lloyd Austin and Israeli Prime Minister Benjamin Netanyahu give a statement after their meeting in Jerusalem on April 12, 2021. Menahem Kahana/Pool via REUTERS

People walk as Thorpe Park reopens following easing of the coronavirus disease (COVID-19) restrictions, in London, Britain April 12, 2021. REUTERS/Matthew Childs

A sign is seen at the door of The Practitioner pub following its reopening for outdoor service, as the coronavirus disease (COVID-19) restrictions ease, in Hertford, Britain April 12, 2021. REUTERS/Andrew Couldridge

A member of staff serves a customer at The Practitioner pub following its reopening for outdoor service, as the coronavirus disease (COVID-19) restrictions ease, in Hertford, Britain April 12, 2021. REUTERS/Andrew Couldridge

A person looks through the window of The Practitioner pub following its reopening for outdoor service, as the coronavirus disease (COVID-19) restrictions ease, in Hertford, Britain April 12, 2021. REUTERS/Andrew Couldridge

Palestinians shop at a market, ahead of the holy fasting month of Ramadan, in Gaza City April 5, 2021. Picture taken April 5, 2021. REUTERS/Mohammed Salem

A Palestinian boy hangs a lantern as he sells products at a market, ahead of the holy fasting month of Ramadan, in Gaza City April 5, 2021. Picture taken April 5, 2021. REUTERS/Mohammed Salem

A Palestinian man gestures outside a shop displaying Ramadan decorations, ahead of the holy fasting month of Ramadan, in Gaza City April 5, 2021. Picture taken April 5, 2021. REUTERS/Mohammed Salem

A Palestinian man sells pickles at a market, ahead of the holy fasting month of Ramadan, in Gaza City April 5, 2021. Picture taken April 5, 2021. REUTERS/Mohammed Salem

A Palestinian man works on ceramic pots for sale ahead of the holy fasting month of Ramadan, in Hebron in the Israeli-occupied West Bank April 12, 2021. REUTERS/Mussa Qawasma

Palestinians walk as they shop at a market, ahead of the holy fasting month of Ramadan, in Gaza City April 5, 2021. Picture taken April 5, 2021. REUTERS/Mohammed Salem

A Palestinian man works on ceramic pots for sale ahead of the holy fasting month of Ramadan, in Hebron in the Israeli-occupied West Bank April 12, 2021. REUTERS/Mussa Qawasma

A Palestinian man sits next to ceramic pots displayed for sale ahead of the holy fasting month of Ramadan, in Hebron in the Israeli-occupied West Bank April 12, 2021. REUTERS/Mussa Qawasma

A sign is seen in the window of The Practitioner pub following its reopening for outdoor service, as the coronavirus disease (COVID-19) restrictions ease, in Hertford, Britain April 12, 2021. REUTERS/Andrew Couldridge

Teacher Anke Wendt speaks during a lesson before she distributes COVID-19 antigen tests to schoolchildren of the 10C class at the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

A sign is seen in the window of The Practitioner pub following its reopening for outdoor service, as the coronavirus disease (COVID-19) restrictions ease, in Hertford, Britain April 12, 2021. REUTERS/Andrew Couldridge

Teacher Anke Wendt uses an Ipad during a streaming lesson before she distributes COVID-19 antigen tests to schoolchildren of the 10C class at the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Les feux de forêt se déclenchent souvent au Népal pendant la saison sèche, de janvier à mai, lorsque les villageois brûlent les feuilles sèches dans les bois pour favoriser la pousse d'herbe fraîche pour leur bétail. Cumul des incendies de 2012 à 2021.

A person walks past The Practitioner pub following its reopening for outdoor service, as the coronavirus disease (COVID-19) restrictions ease, in Hertford, Britain April 12, 2021. REUTERS/Andrew Couldridge

People walk through Windsor Great Park, after Britain's Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Windsor, near London, Britain April 12, 2021. REUTERS/Phil Noble

Abdel Fattah Hamimi, a vendor, prepares "Kaak", a traditional Lebanese street bread in Tripoli, Lebanon, April 11, 2021. Picture taken April 11, 2021. REUTERS/Walid Saleh

Abdel Fattah Hamimi, a vendor, prepares "Kaak", a traditional Lebanese street bread in Tripoli, Lebanon, April 11, 2021. Picture taken April 11, 2021. REUTERS/Walid Saleh

People walk in a park in front of Windsor Castle after Britain's Prince Philip, husband of Queen Elizabeth, died at the age of 99, in Windsor, near London, Britain April 12, 2021. REUTERS/Phil Noble

A woman wears a face mask as restaurant and small business owners gather during a protest calling for their businesses to be allowed to re-open, despite no authorization for the demonstration by the government, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, April 12, 2021. The writing on the face mask reads: "Open!". REUTERS/Yara Nardi

Restaurant and small business owners gather during a protest calling for their businesses to be allowed to re-open, despite no authorization for the demonstration by the government, amid the coronavirus disease (COVID-19) outbreak, in Rome, Italy, April 12, 2021. REUTERS/Yara Nardi

Boxes of COVID-19 antigen tests are stored prior to be distributed to the schoolchildren of the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Boxes of COVID-19 antigen tests are stored prior to be distributed to the schoolchildren of the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Boxes of COVID-19 antigen tests are stored prior to be distributed to the schoolchildren of the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Teacher Anke Wendt distributes COVID-19 antigen tests to schoolchildren of the 10C class at the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Teacher Anke Wendt distributes COVID-19 antigen tests to schoolchildren of the 10C class at the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Teacher Anke Wendt distributes COVID-19 antigen tests to schoolchildren of the 10C class at the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

Teacher Anke Wendt distributes COVID-19 antigen tests to the schoolchildren of the 10C class at the Gymnasium Steglitz in Berlin, Germany, April 12, 2021. REUTERS/Michele Tantussi

U.S. Secretary of Defense Lloyd Austin leaves Yad Vashem, Jerusalem, April 12, 2021. Heidi Levine/Pool via REUTERS

People wearing protective face masks carry bags at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

People wearing protective face masks sit in buses at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

U.S. Secretary of Defense Lloyd Austin receives a gift from acting chairman of Yad Vashem Ronen Plot, following a memorial ceremony in the Hall of Remembrance during his visit to Yad Vashem, as Israeli Defense Minister Benny Gantz looks on, Jerusalem, April 12, 2021. Heidi Levine/Pool via REUTERS

A person wearing a protective face mask sits in a bus at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

People wearing protective face masks sit in buses at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

An official from the Meteorology, Climatology, and Geophysics Council stands near a telescope which is used to view the moon, ahead of the holy fasting month of Ramadan to mark its beginning, in Jakarta, Indonesia, April 12, 2021. REUTERS/Ajeng Dinar Ulfiana

People wearing protective face masks walk at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

A woman checks Ramadan decorations at a shop ahead of the holy fasting month of Ramadan, in Sidon, Lebanon, April 10, 2021. Picture taken April 10, 2021. REUTERS/Aziz Taher

A man checks Ramadan decorations at a shop ahead of the holy fasting month of Ramadan, in Sidon, Lebanon, April 10, 2021. Picture taken April 10, 2021. REUTERS/Aziz Taher

A U.S. Marine lays a wreath as U.S. Secretary of Defense Lloyd Austin looks on during a memorial ceremony in the Hall of Remembrance, during his visit to Yad Vashem in Jerusalem, April 12, 2021. Heidi Levine/Pool via REUTERS

U.S. Secretary of Defense Lloyd Austin stands with with U.S. Marines during a memorial ceremony in the Hall of Remembrance during his visit to Yad Vashem, Jerusalem April 12, 2021. Heidi Levine/Pool via REUTERS

People wearing protective face masks carry bags at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

People wearing protective face masks walk at Mo Chit bus terminal ahead of Songkran holiday which marks the Thai New Year during the coronavirus disease (COVID-19) outbreak, as the country deals with a fresh wave of infections after tackling earlier outbreaks, in Bangkok, Thailand, April 12, 2021. REUTERS/Chalinee Thirasupa

A volunteer dressed as the Star Wars character Darth Vader picks up trash during a street cleaning event marking the 60th anniversary of the first manned space flight in Irkutsk, Russia April 12, 2021. REUTERS/Yuri Novikov

U.S. Secretary of Defense Lloyd Austin carries a wreath together with U.S. Marines during a memorial ceremony in the Hall of Remembrance, during his visit to Yad Vashem, Jerusalem, April 12, 2021. Heidi Levine/Pool via REUTERS

A volunteer dressed as the Star Wars character Chewbacca picks up trash during a street cleaning event marking the 60th anniversary of the first manned space flight in Irkutsk, Russia April 12, 2021. REUTERS/Yuri Novikov

Volunteers dressed as Star Wars characters walk during a street cleaning event marking the 60th anniversary of the first manned space flight in Irkutsk, Russia April 12, 2021. REUTERS/Yuri Novikov an event to pick up trash Star Wars fans dressed in costume as Darth Vader and Chewbacca Star Wars fans dressed in costume as a Shadow Stormtrooper, Chewbacca and Darth Vader

U.S. Secretary of Defense Lloyd Austin stands with Israeli Defense Minister Benny Gantz and Ronen Plot, the acting chairman of Yad Vashem, during a memorial ceremony in the Hall of Remembrance during his visit to Yad Vashem, Jerusalem April 12, 2021. Heidi Levine/Pool via REUTERS

Officials from the Meteorology, Climatology, and Geophysics Council use a telescope at a beach to view the moon, ahead of the holy fasting month of Ramadan to mark its beginning, in Jakarta, Indonesia, April 12, 2021. REUTERS/Ajeng Dinar Ulfiana

People shop ahead of the holy fasting month of Ramadan, in Sidon, Lebanon, April 10, 2021. Picture taken April 10, 2021. REUTERS/Aziz Taher

People shop for fruits and vegetables ahead of the holy fasting month of Ramadan, in Sidon, Lebanon, April 10, 2021. Picture taken April 10, 2021. REUTERS/Aziz Taher

A man arranges sweets ahead of the holy fasting month of Ramadan, in Sidon, Lebanon, April 10, 2021. Picture taken April 10, 2021. REUTERS/Aziz Taher

Volunteers dressed as Star Wars characters walk during a street cleaning event marking the 60th anniversary of the first manned space flight in Irkutsk, Russia April 12, 2021. REUTERS/Yuri Novikov

U.S. Secretary of Defense Lloyd Austin leaves Yad Vashem, Jerusalem, April 12, 2021. Heidi Levine/Pool via REUTERS

General view of the Shorja wholesale market ahead of the holy fasting month of Ramadan, in Baghdad, Iraq, April 12, 2021. REUTERS/Saba Kareem

U.S. Secretary of Defense Lloyd Austin rekindles the eternal flame during a memorial ceremony in the Hall of Remembrance during his visit to Yad Vashem, as Israeli Defense Minister Benny Gantz looks on, Jerusalem April 12, 2021. Heidi Levine/Pool via REUTERS