A member of the South African National Defence Force (SANDF) raises a flag during a ceremony to commemorate the International Day of U.N. Peacekeepers at at De Brug military base in Bloemfontein, South Africa, May 29, 2023. REUTERS/Siphiwe Sibeko 

Family members react after laying wreaths during a ceremony by the South African National Defence Force (SANDF) commemorating the International Day of U.N. Peacekeepers at at De Brug military base in Bloemfontein, South Africa, May 29, 2023. REUTERS/Siphiwe Sibeko 

Lerato Sejake, a family member who lost a loved one in a line of duty, gestures after laying wreaths during a ceremony by the South African National Defence Force (SANDF) commemorating the International Day of U.N. Peacekeepers at at De Brug military base in Bloemfontein, South Africa, May 29, 2023. REUTERS/Siphiwe Sibeko 

A memebr of the South African National Defence Force keeps watch ahead of a ceremony to commemorate the International Day of U.N. Peacekeepers at at De Brug military base in Bloemfontein, South Africa, May 29, 2023. REUTERS/Siphiwe Sibeko 

A member of the South African National Defence Force works on a tanker ahead of a ceremony to commemorate the International Day of U.N. Peacekeepers at at De Brug military base in Bloemfontein, South Africa, May 29, 2023. REUTERS/Siphiwe Sibeko 

Members of the South African National Defence Force keep watch ahead of a ceremony to commemorate the International Day of U.N. Peacekeepers at De Brug military base in Bloemfontein, South Africa, May 29, 2023. REUTERS/Siphiwe Sibeko 

A post for UN peacekeepers of the United Nations Interim Force in Lebanon (UNIFIL), is pictured in Marwahin, near the border with Israel, southern Lebanon, April 6, 2023. REUTERS/Aziz Taher 

Νewly elected President of Cyprus Nikos Christodoulides waves to journalists after a meeting with Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart and the Turkish Cypriot leader Ersin Tatar at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Turkish Cypriot leader Ersin Tatar leaves after a meeting with Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart and Νewly elected President of Cyprus Nikos Christodoulides at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Νewly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar watch a laptop after a meeting with Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Νewly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar talk after a meeting with Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart shakes hands with newly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar after a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart shakes hands with newly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar after a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart attends a meeting with with newly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar during a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart shakes hands with newly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar during a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart attends a meeting with with newly elected President of Cyprus Nikos Christodoulides and Turkish Cypriot leader Ersin Tatar during a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart shake hands with Turkish Cypriot leader Ersin Tatar before a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

Special Representative of the United Nations Secretary-General and Head of the United Nations Peacekeeping Force in Cyprus (UNFICYP) Colin Stewart shake hands with with newly elected President of Cyprus and Nikos Christodoulides before a meeting at the residence of the UN peacekeeping force's chief of mission inside the UN-controlled buffer zone in Nicosia, Cyprus, February 23, 2023. Iakovos Hatzistavrou/Pool via REUTERS 

United Nations High Commissioner for Human Rights (OHCHR) Volker Turk delivers a statement in Port-au-Prince, Haiti February 10, 2023. REUTERS/Ralph Tedy Erol 

United Nations High Commissioner for Human Rights (OHCHR) Volker Turk delivers a statement in Port-au-Prince, Haiti February 10, 2023. REUTERS/Ralph Tedy Erol 

United Nations High Commissioner for Human Rights (OHCHR) Volker Turk delivers a statement in Port-au-Prince, Haiti February 10, 2023. REUTERS/Ralph Tedy Erol 

United Nations High Commissioner for Human Rights (OHCHR) Volker Turk delivers a statement in Port-au-Prince, Haiti February 10, 2023. REUTERS/Ralph Tedy Erol 

United Nations High Commissioner for Human Rights (OHCHR) Volker Turk delivers a statement in Port-au-Prince, Haiti February 10, 2023. REUTERS/Ralph Tedy Erol 

United Nations Interim Force in Lebanon (UNIFIL) Head of Mission and Force Commander Major General Aroldo Lazaro and Irish ambassador accredited for Lebanon Nuala O'Brien attend the repatriation ceremony for Irish soldier Sean Rooney, who was killed on a U.N. peacekeeping patrol, at Beirut International Airport, in Beirut, Lebanon December 18, 2022. REUTERS/Mohamed Azakir 

Members of the United Nations Interim Force in Lebanon (UNIFIL) peacekeeping mission attend the repatriation ceremony for Irish soldier Sean Rooney who was killed on a U.N. peacekeeping patrol, at Beirut International Airport, in Beirut, Lebanon December 18, 2022. REUTERS/Mohamed Azakir TPX IMAGES OF THE DAY 

Irish peacekeepers from the United Nations Interim Force in Lebanon (UNIFIL) walk at the hospital where the body of Irish soldier Sean Rooney who was killed on a U.N. peacekeeping Patrol was kept, in Sidon, Lebanon December 18, 2022. REUTERS/Aziz Taher 

U.S. President Joe Biden boards Air Force One as he departs for Egypt to attend the COP27 summit from Joint Base Andrews in Maryland, U.S., November 10, 2022. REUTERS/Kevin Lamarque 

U.S. President Joe Biden salutes from Air Force One as he departs for Egypt to attend the COP27 summit from Joint Base Andrews in Maryland, U.S., November 10, 2022. REUTERS/Kevin Lamarque 

U.S. President Joe Biden waves from Air Force One as he departs for Egypt to attend the COP27 summit from Joint Base Andrews in Maryland, U.S., November 10, 2022. REUTERS/Kevin Lamarque 

Taha Yassin, 46, stands inside the deserted home of his neighbour, Hedyya Ouda who's family have left the village of Al-Bouzayyat, in Diwaniya, Iraq, November 8, 2022. "The village is empty," said Hedyya Ouda, one of the few remaining residents when Reuters visited her in October. Hedyya and her husband stopped growing wheat and barley three years ago because of water shortages, sold their livestock and were forced to travel about 60 km (40 miles) twice a month to buy drinking water. When Reuters returned to their village in November, both had left for the city. REUTERS/Alaa Al-Marjani SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A boat lies on the dried out shore of the Euphrates river, near Qere Qozaq controlled by Kurdish-led Syrian Democratic Forces, Syria, October 16, 2022. In Syria, levels at dams on the Euphrates have fallen by up to 5 metres, shrinking reservoirs and leaving farmers struggling to access the remaining water reserves. REUTERS/Orhan Qereman SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Low water levels are seen in the Euphrates river, near Qere Qozaq controlled by Kurdish-led Syrian Democratic Forces, Syria, October 16, 2022. In Syria, levels at dams on the Euphrates have fallen by up to 5 metres, shrinking reservoirs and leaving farmers struggling to access the remaining water reserves. REUTERS/Orhan Qereman SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Children play football on the dried up bank of the Euphrates river, near Qere Qozaq controlled by Kurdish-led Syrian Democratic Forces, Syria, October 16, 2022. In Syria, levels at dams on the Euphrates have fallen by up to 5 metres, shrinking reservoirs and leaving farmers struggling to access the remaining water reserves. REUTERS/Orhan Qereman SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

Cattle graze along the dried out bank of the Euphrates river, near Qere Qozaq controlled by Kurdish-led Syrian Democratic Forces, Syria, October 16, 2022. In Syria, levels at dams on the Euphrates have fallen by up to 5 metres, shrinking reservoirs and leaving farmers struggling to access the remaining water reserves. REUTERS/Orhan Qereman SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Ahmed Hammoud, 33, works on his land close to the Euphrates river, near Qere Qozaq controlled by Kurdish-led Syrian Democratic Forces, Syria, October 16, 2022. In Syria, levels at dams on the Euphrates have fallen by up to 5 metres, shrinking reservoirs and leaving farmers struggling to access the remaining water reserves. "I stopped farming because it was impossible to irrigate the agricultural land," said Ahmed. REUTERS/Orhan Qereman SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Hedyya Ouda poses for a photograph in the village of Al-Bouzayyat, which sits on the bank of a former canal which has dried up, in Diwaniya, Iraq, October 11, 2022. "The village is empty," said Hedyya Ouda, one of the few remaining residents when Reuters visited her in October. Hedyya and her husband stopped growing wheat and barley three years ago because of water shortages, sold their livestock and were forced to travel about 60 km (40 miles) twice a month to buy drinking water. When Reuters returned to their village in November, both had left for the city. REUTERS/Alaa Al-Marjani SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

The remains of a house are seen in the village of Al-Bouzayyat which sits on the bank of a former canal which has dried up, in Diwaniya, Iraq, October 11, 2022. In the the village of Al-Bouzayyat many have left for cities or other provinces in search of jobs. "The village is empty," said Hedyya Ouda, one of the few remaining residents when Reuters visited her in October. Ouda and her husband stopped growing wheat and barley three years ago because of water shortages, sold their livestock and were forced to travel about 60 km (40 miles) twice a month to buy drinking water. When Reuters returned to their village in November, both had left for the city. REUTERS/Alaa Al-Marjani SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

A sandal lies on the floor of an abandoned house in the village of Al-Bouzayyat which sits on the bank of a former canal which has dried up, in Diwaniya, Iraq, October 11 2022. In the the village of Al-Bouzayyat many have left for cities or other provinces in search of jobs. "The village is empty," said Hedyya Ouda, one of the few remaining residents when Reuters visited her in October. Ouda and her husband stopped growing wheat and barley three years ago because of water shortages, sold their livestock and were forced to travel about 60 km (40 miles) twice a month to buy drinking water. When Reuters returned to their village in November, both had left for the city. REUTERS/Alaa Al-Marjani SEARCH "CLIMATE MIDEAST WATER" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Emad Attia Ramadan, 48, a farmer, poses for a portrait in his paddy field after his land was affected by high salinity in Damietta, Egypt September 25, 2022. Soaring salinity in Damietta due to climate change is forcing the farmers to pull up tomatoes and replace them with rice. REUTERS/Fatma Fahmy 

Hammad Mahmoud, President of the Fruit and Vegetable Association, gestures to show that the corn field was damaged and affected by high salinity, in Damietta, Egypt September 25, 2022. Soaring salinity in Damietta due to climate change is forcing farmers to pull up tomatoes and replace them with rice. REUTERS/Fatma Fahmy 

Iran's President Ebrahim Raisi holds up a picture of Quds Force Commander General Qassem Soleimani, who was killed in a U.S. attack, as he addresses the 77th Session of the United Nations General Assembly at U.N. Headquarters in New York City, U.S., September 21, 2022. REUTERS/Brendan McDermid 

Iran's President Ebrahim Raisi holds up a picture of Quds Force Commander General Qassem Soleimani, who was killed in a U.S. attack, as he addresses the 77th Session of the United Nations General Assembly at U.N. Headquarters in New York City, U.S., September 21, 2022. REUTERS/Brendan McDermid TPX IMAGES OF THE DAY 

Iran's President Ebrahim Raisi holds up a picture of Quds Force Commander General Qassem Soleimani, who was killed in a U.S. attack, as he addresses the 77th Session of the United Nations General Assembly at U.N. Headquarters in New York City, U.S., September 21, 2022. REUTERS/Shannon Stapleton 

Iran's President Ebrahim Raisi holds up a picture of Quds Force Commander General Qassem Soleimani, who was killed in a U.S. attack, as he addresses the 77th Session of the United Nations General Assembly at U.N. Headquarters in New York City, U.S., September 21, 2022. REUTERS/Shannon Stapleton 

Iran's President Ebrahim Raisi holds up a picture of Quds Force Commander General Qassem Soleimani, who was killed in a U.S. attack, as he addresses the 77th Session of the United Nations General Assembly at U.N. Headquarters in New York City, U.S., September 21, 2022. REUTERS/Shannon Stapleton 

A view of a rice field at a plantation in Mansoura in Dakahlia Governorate, Egypt September 20, 2022. Soaring salinity in Dakahlia due to climate change are forcing farmers to pull up vegetables and replace them with rice. REUTERS/Fatma Fahmy 

An Egyptian farmer picks cotton during the harvest season at Mansoura in Dakahlia Governorate, Egypt September 20, 2022. Soaring high salinity, cracking due to salinity and lack of soil permeability in Dakahlia, due to climate change, are forcing the farmers to pull up vegetables and replace them with cotton. REUTERS/Fatma Fahmy 

Egyptian Farmers pick cotton during the harvest season at Mansoura in Dakahlia Governorate, Egypt September 20, 2022. Soaring high salinity, cracking due to salinity and lack of soil permeability in Dakahlia, due to climate change, are forcing the farmers to pull up vegetables and replace them with cotton. REUTERS/Fatma Fahmy 

A view at a cotton field in a plantation at Mansoura in Dakahlia Governorate, Egypt September 20, 2022. Soaring high salinity, cracking due to salinity and lack of soil permeability in Dakahlia, due to climate change, are forcing the farmers to pull up vegetables and replace them with cotton. REUTERS/Fatma Fahmy 

A view at a cotton field in a plantation at Mansoura in Dakahlia Governorate, Egypt September 20, 2022. Soaring high salinity, cracking due to salinity and lack of soil permeability in Dakahlia, due to climate change, are forcing the farmers to pull up vegetables and replace them with cotton. REUTERS/Fatma Fahmy 

Congolese policemen stand guard to stop protesters near the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese policemen and Armed Forces of the Democratic Republic of the Congo (FARDC) stand guard outside the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese policemen supervise as protesters pull a container used to barricade the road near the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese policemen stand guard to stop protesters near the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese policemen disperse protesters along the road near the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese policemen supervise as protesters pull a container used to barricade the road near the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese policemen disperse protesters along the road near the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 26, 2022. REUTERS/Arlette Bashizi 

Congolese protesters gather outside a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 25, 2022. REUTERS/Arlette Bashizi 

Congolese protesters set up a fire barricade outside a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 25, 2022. REUTERS/Arlette Bashizi 

Congolese policemen stand guard to stop protesters outside the compound of a United Nations peacekeeping force's warehouse in Goma in the North Kivu province of the Democratic Republic of Congo July 25, 2022. REUTERS/Arlette Bashizi