The 'Spot' Robot dog named Perceval, developed by Boston-based Dynamics, inspects a suburban rapid transit (RER) dock with Paris transport RATP networks maintenance team, in Torcy, near Paris, France, April 18, 2023. REUTERS/Sarah Meyssonnier 

The 'Spot' Robot dog named Perceval, developed by Boston-based Dynamics, inspects a suburban rapid transit (RER) sub-dock with Paris transport RATP networks maintenance team, in Torcy, near Paris, France, April 18, 2023. REUTERS/Sarah Meyssonnier 

Flowers and ornaments belonging to Norman Allen, 86, are displayed on a window ledge in his home in Rickmansworth, Britain, April 17, 2023. Allen was 16 and a boy scout at the time of the Coronation of Queen Elizabeth II in 1953, he volunteered to sell programs on The Mall during the Crowning and eventually became a painter and decorator, which took him to a few jobs inside Buckingham Palace. "During my time working at the Palace, I got to know one of the maintenance electricians, and one day he invited me to go in my lunch break to some of the rooms he had access to," he said. "Although I may have been wearing my white overalls, I did actually sit on the throne of England, in both the Throne room and the ballroom, both of which were covered by dust sheets". REUTERS/Hannah McKay SEARCH "MCKAY CORONATION PORTRAITS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Norman Allen, 86, poses for a photograph in his home in Rickmansworth, Britain, April 17, 2023. Allen was 16 and a boy scout at the time of the Coronation of Queen Elizabeth II in 1953, he volunteered to sell programs on The Mall during the Crowning and eventually became a painter and decorator, which took him to a few jobs inside Buckingham Palace. "During my time working at the Palace, I got to know one of the maintenance electricians, and one day he invited me to go in my lunch break to some of the rooms he had access to," he said. "Although I may have been wearing my white overalls, I did actually sit on the throne of England, in both the Throne room and the ballroom, both of which were covered by dust sheets". REUTERS/Hannah McKay SEARCH "MCKAY CORONATION PORTRAITS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Workers carry out maintenance on Sultan Salahuddin Abdul Aziz Mosque during the holy fasting month of Ramadan in Shah Alam, Malaysia March 24, 2023. REUTERS/Hasnoor Hussain TPX IMAGES OF THE DAY 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of Ukrainian military personnel are trained by the Spanish Armed Forces in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of the Spanish Armed Forces give training to Ukrainian military personnel in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

Members of Ukrainian military personnel are trained by the Spanish Armed Forces in the operation and maintenance of Leopard battle tanks, at San Gregorio Training Center in Zaragoza, Spain, March 13, 2023. REUTERS/Juan Medina 

National Park Service maintenance workers Henry Smith and Ron Hobkirk perform maintenance on a farmhouse dinner bell located on the grounds of the Boyhood Farm of Jimmy Carter, part of the Jimmy Carter National Historic Park, in Plains, Georgia, U.S., February 22, 2023. REUTERS/Alyssa Pointer 

Head of the Police Security Maintenance Agency, Arief Sulistyanto poses with police officers after the ceremony to send a search and rescue team to quake-hit Turkey in Jakarta, Indonesia, February 9, 2023. REUTERS/Ajeng Dinar Ulfiana 

Antje Leendertse, permanent representative of Germany to the United Nations reacts as she speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

Ukrainian Ambassador to the U.N. Sergiy Kyslytsya speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

Ukrainian Ambassador to the U.N. Sergiy Kyslytsya speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

U.S. Ambassador to the United Nations Linda Thomas-Greenfield speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

Martin Griffiths, the Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

British Ambassador to the United Nations Barbara Woodward speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

British Ambassador to the United Nations Barbara Woodward attends the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

British Ambassador to the United Nations Barbara Woodward speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

French Ambassador to the U.N. Nicolas de Riviere speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

French Ambassador to the U.N. Nicolas de Riviere speaks during the U.N. Security Council meeting on maintenance of peace and security of Ukraine at the United Nations headquarters in New York, U.S., February 6, 2023. REUTERS/Eduardo Munoz 

Ryan Maddeaux, secretary of the BC Association of People on Opiate Maintenance (BCAPOM) reflects as the province of British Columbia decriminalized the possession of small amounts of cocaine, methamphetamine, MDMA and opioids like heroin, fentanyl and morphine, in the Downtown Eastside of Vancouver, British Columbia, Canada January 31, 2023. REUTERS/Jennifer Gauthier 

Ryan Maddeaux, secretary of the BC Association of People on Opiate Maintenance (BCAPOM) reflects as the province of British Columbia decriminalized the possession of small amounts of cocaine, methamphetamine, MDMA and opioids like heroin, fentanyl and morphine, in the Downtown Eastside of Vancouver, British Columbia, Canada January 31, 2023. REUTERS/Jennifer Gauthier 

Crew members perform routine maintenance on an aircraft in the hangar bay of the USS Nimitz aircraft carrier during a deployment to the South China Sea, Mid-Sea, January 27, 2023. REUTERS/Joseph Campbell 

A crew member performs routine maintenance on an aircraft in the hangar bay of the USS Nimitz aircraft carrier during a deployment to the South China Sea, Mid-Sea, January 27, 2023. REUTERS/Joseph Campbell 

An employee performs maintenance on a bike desk, as part of a program to improve physical health and increase concentration during classes, in San Nicolas de los Garza, Mexico January 18, 2023. REUTERS/Daniel Becerril 

A view shows a maintenance intervention area inside the Orano nuclear waste reprocessing plant in La Hague, near Cherbourg, France, January 17, 2023. REUTERS/Stephane Mahe 

Russian Ambassador to the United Nations Vassily Nebenzia sits next to Swiss Head of the Foreign Affairs Department Ignazio Cassis as he addresses a ministerial meeting of the U.N. Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, January 12, 2023. REUTERS/Mike Segar 

Japanese Foreign Minister Yoshimasa Hayashi chairs a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, U.S., January 12, 2023. REUTERS/Mike Segar 

Japanese Foreign Minister Yoshimasa Hayashi chairs a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, U.S., January 12, 2023. REUTERS/Mike Segar 

Japanese Foreign Minister Yoshimasa Hayashi chairs a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, U.S., January 12, 2023. REUTERS/Mike Segar 

Japanese Foreign Minister Yoshimasa Hayashi chairs a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, U.S., January 12, 2023. REUTERS/Mike Segar 

Japanese Foreign Minister Yoshimasa Hayashi speaks next to United Nations Secretary General Antonio Guterres while chairing a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, U.S., January 12, 2023. REUTERS/Mike Segar 

British Parliamentary Under-Secretary of State for Americas and Caribbean David Rutley addresses a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, January 12, 2023. REUTERS/Mike Segar 

British Parliamentary Under-Secretary of State for Americas and Caribbean David Rutley addresses a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, January 12, 2023. REUTERS/Mike Segar 

British Parliamentary Under-Secretary of State for Americas and Caribbean David Rutley addresses a ministerial meeting of the United Nations Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, January 12, 2023. REUTERS/Mike Segar 

Swiss Head of the Foreign Affairs Department Ignazio Cassis speaks next to Russian Ambassador to the United Nations Vassily Nebenzia at a ministerial meeting of the U.N. Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, at U.N. headquarters in New York City, New York, January 12, 2023. REUTERS/Mike Segar 

U.S. Ambassador to the United Nations Linda Thomas-Greenfield addresses a ministerial meeting of the U.N. Security Council on the promotion and strengthening of the rule of law in the maintenance of international peace and security, next to British Parliamentary Under-Secretary of State for Americas and Caribbean David Rutley at U.N. headquarters in New York City, New York, January 12, 2023. REUTERS/Mike Segar