Russia’s invasion of Ukraine began on Thursday with attacks by land, sea and air More than an estimated 2.5 million refugees have fled for neighbouring countries since Russia invaded on Feb. 24, according to the United Nations High Commission for Refugees. 

An Afghan refugee family wait for their turn to undergo an IRIS test at the United Nations High Commission for Refugees (UNHCR) office in Nowshera, Pakistan, June 20, 2019. REUTERS/Fayaz Aziz 

Siblings from an Afghan refugee family wait for their turn to get an IRIS test at the United Nations High Commission for Refugees (UNHCR) office in Nowshera, Pakistan, June 20, 2019. REUTERS/Fayaz Aziz TPX IMAGES OF THE DAY 

A worker carries out an IRIS test to a girl from an Afghan refugee family at the United Nations High Commission for Refugees (UNHCR) office in Nowshera, Pakistan, June 20, 2019. REUTERS/Fayaz Aziz 

A Congolese child, whose family fled from ethnic fighting in Democratic Republic of Congo by fleeing on a boat across Lake Albert, eats a meal at United Nations High Commission for Refugees (UNHCR) reception center in Kyangwali refugee settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

Congolese families, who fled from Democratic Republic of Congo by fleeing on a boat across Lake Albert, sit in a queue at United Nations High Commission for Refugees' (UNHCR) Kyangwali refugee settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

Congolese families, who fled from Democratic Republic of Congo by fleeing on a boat across Lake Albert, prepare meals at United Nations High Commission for Refugees' (UNHCR) Kyangwali refugee settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

A Congolese mother, who fled from Democratic Republic of Congo by fleeing on a boat across Lake Albert, looks through a window as she carries her child at United Nations High Commission for Refugees' (UNHCR) Kyangwali refugee settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena TPX IMAGES OF THE DAY 

A Congolese child, whose family fled from ethnic fighting in Democratic Republic of Congo by fleeing on a boat across Lake Albert, looks on at United Nations High Commission for Refugees (UNHCR) reception center in Kyangwali refugee settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

Congolese people who fled from Democratic Republic of Congo by fleeing on a boat across Lake Albert, gather at a United Nations High Commission for Refugees' (UNHCR) Kyangwali refugee settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

Congolese men, who fled ethnic fighting in the Democratic Republic of Congo on fishing boats, across Lake Albert, rest upon arrival at a United Nations High Commission for Refugees (UNHCR) settlement camp in Kyangwali, Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena 

A Congolese who fled ethnic fighting in Democratic Republic of Congo by boat across Lake Albert, gathers at United Nations High Commission for Refugees (UNHCR) settlement camp in Kyangwali, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

A Congolese woman, who fled ethnic fighting in the Democratic Republic of Congo on a fishing boat, across Lake Albert, carries belongings on her head at a United Nations High Commission for Refugees (UNHCR) settlement camp in Kyangwali, Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena 

A Congolese, who fled ethnic fighting in Democratic Republic of Congo on a boat across Lake Albert, gathers at United Nations High Commission for Refugees (UNHCR) settlement camp in Kyangwali, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

Congolese families, who fled ethnic fighting in Democratic Republic of Congo on a boat across Lake Albert, sit in a bus upon arrival at United Nations High Commission for Refugees (UNHCR) settlement camp in Kyangwali, Uganda March 19 2018. Picture taken March 19, 2018. REUTERS/James Akena TPX IMAGES OF THE DAY 

Children who fled ethnic fighting in the Democratic Republic of Congo by fleeing on a boat across Lake Albert, play cards at a United Nations High Commission for Refugees (UNHCR) settlement camp in Kyangwali, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

A Congolese child, whose family fled from ethnic fighting in Democratic Republic of Congo by boat across Lake Albert, eats a meal at United Nations High Commission for Refugees (UNHCR) reception center in Kyangwali refugees settlement camp, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

A UN worker monitors Congolese refugees who fled from the Democratic Republic of Congo by boat across Lake Albert, upon arrival at United Nations High Commission for Refugees (UNHCR) in settlement camp in Kyangwali, Uganda March 19, 2018. Picture taken March 19, 2018. REUTERS/James Akena 

A Congolese child, whose family fled ethnic fighting in the Democratic Republic of Congo on fishing boats across Lake Albert, carries a toddler on his back at a United Nations High Commission for Refugees (UNHCR) in settlement camp in Kyangwali, Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena 

An elevated view of the Kyangwali refugee settlement camp, where people who fled ethnic fighting in the Democratic Republic of Congo, are being settled by United Nations High Commission for Refugees (UNHCR), Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena 

A Congolese child, whose family fled ethnic fighting in the Democratic Republic of Congo on fishing boats, across Lake Albert, carries a toddler on his back at a United Nations High Commission for Refugees (UNHCR) in settlement camp in Kyangwali, Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena 

People who fled ethnic fighting in Democratic Republic of Congo on fishing boats, across Lake Albert, wait to be registered by the United Nations High Commission for Refugees (UNHCR) at the Sebagoro fishing village on the shore of Lake Albert, Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena 

People who fled ethnic fighting in Democratic Republic of Congo on fishing boats, across Lake Albert, wait to be registered by the United Nations High Commission for Refugees (UNHCR) at the Sebagoro fishing village on the shore of Lake Albert, Uganda March 20, 2018. Picture taken March 20, 2018. REUTERS/James Akena? 

A Congolese elderly woman, who migrated from Democratic Republic of Congo by fleeing on a boat across Lake Albert, waits to be registered by United Nations High Commission for Refugees (UNHCR) in Ntoroko, Uganda February 17, 2018. REUTERS/James Akena 

A Congolese elderly woman, who migrated from Democratic Republic of Congo by fleeing on a boat across Lake Albert, waits to be registered by United Nations High Commission for Refugees (UNHCR) in Ntoroko, Uganda February 17, 2018. REUTERS/James Akena 

Congolese family, who migrated from Democratic Republic of Congo by fleeing on a boat across Lake Albert, waits to be registered by United Nations High Commission for Refugees (UNHCR) in Ntoroko, Uganda February 17, 2018. REUTERS/James Akena 

British Foreign Secretary Boris Johnson talks to Rohingya Muslim refugees from Myanmar at an UNHCR (United Nations High Commission for Refugees) centre at Kutapalong camp, in Cox's Bazar, Bangladesh February 10, 2018. Picture taken February 10, 2018. REUTERS/Andrew RC Marshall 

British Foreign Secretary Boris Johnson talks to Rohingya Muslim refugees from Myanmar at an UNHCR (United Nations High Commission for Refugees) centre at Kutapalong camp, in Cox's Bazar, Bangladesh February 10, 2018. Picture taken February 10, 2018. REUTERS/Andrew RC Marshall 

A United Nations High Commission for Refugees official carries out an IRIS test on an Afghan refugee at the UNHCR office on the outskirts of Peshawar, Pakistan, April 3, 2017. REUTERS/Fayaz Aziz TPX IMAGES OF THE DAY 

A United Nations High Commission for Refugees official carries out an IRIS test on an Afghan refugee at the UNHCR office on the outskirts of Peshawar, Pakistan April 3, 2017. REUTERS/Fayaz Aziz 

NominatIon for the Beazley Designs of the Year exhibition, the Better Shelter, developed by Ikea Foundation and the UNHCR is seen in South Kensington, London, Britain November 7, 2016. REUTERS/Peter Nicholls 

NominatIon for the Beazley Designs of the Year exhibition, the Better Shelter, developed by Ikea Foundation and the UNHCR is seen in South Kensington, London, Britain November 7, 2016. REUTERS/Peter Nicholls 

U.N. High Commissioner for Refugees Filippo Grandi speaks during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

U.N. High Commissioner for Refugees Filippo Grandi listens during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

U.N. High Commissioner for Refugees Filippo Grandi listens during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

U.N. High Commissioner for Refugees Filippo Grandi speaks during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

U.N. High Commissioner for Refugees Filippo Grandi speaks during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

U.N. High Commissioner for Refugees Filippo Grandi speaks during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

U.N. High Commissioner for Refugees Filippo Grandi speaks during a news conference in Amman, Jordan, October 24, 2016. REUTERS/Muhammad Hamed 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein smiles during a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein arrives for a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein arrives for a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein arrives for a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein attends a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein gestures before a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse TPX IMAGES OF THE DAY 

United Nations High Commissioner for Human Rights Zeid Ra'ad Al Hussein attends a media briefing at the U.N. European headquarters in Geneva, Switzerland October 12, 2016. REUTERS/Denis Balibouse 

U.N. High Commissioner for Refugees Filippo Grandi waits before attending a news conference at the United Nations in Geneva, Switzerland October 7, 2016. REUTERS/Denis Balibouse 

U.N. High Commissioner for Refugees Filippo Grandi attends a news conference at the United Nations in Geneva, Switzerland October 7, 2016. REUTERS/Denis Balibouse 

U.N. High Commissioner for Refugees Filippo Grandi attends a news conference at the United Nations in Geneva, Switzerland October 7, 2016. REUTERS/Denis Balibouse 

U.N. High Commissioner for Refugees Filippo Grandi attends a news conference at the United Nations in Geneva, Switzerland October 7, 2016. REUTERS/Denis Balibouse 

U.N. High Commissioner for Refugees Filippo Grandi attends a news conference at the United Nations in Geneva, Switzerland October 7, 2016. REUTERS/Denis Balibouse 

U.N. High Commissioner for Refugees Filippo Grandi arrives to attend a news conference at the United Nations in Geneva, Switzerland October 7, 2016. REUTERS/Denis Balibouse 

Antonio Guterres, United Nations High Commissioner for Refugees (UNHCR), arrives for a news conference at the United Nations in Geneva, Switzerland December 18, 2015. REUTERS/Denis Balibouse/File photo 

Antonio Guterres, United Nations High Commissioner for Refugees (UNHCR), addresses a news conference after the 66th Executive Committee at the United Nations European headquarter in Geneva, Switzerland October 9, 2015. REUTERS/Denis Balibouse/File photo 

Antonio Guterres, High Commissioner for Refugees, pauses during a news conference for the launch of the Global Humanitarian Appeal 2016 at the United Nations European headquarters in Geneva, Switzerland December 7, 2015. REUTERS/Denis Balibouse/File photo TPX IMAGES OF THE DAY 

United Nations Secretary-General Ban Ki-moon addresses the 67th session of EXCOM of the United Nations High Commissioner for Refugees (UNHCR) in Geneva, Switzerland, October 3, 2016. REUTERS/Pierre Albouy 

United Nations Secretary-General Ban Ki-moon (L) waves next to United Nations High Commissioner for Refugees Filippo Grandi after his address to the 67th session of EXCOM of the UNHCR in Geneva, Switzerland, October 3, 2016. REUTERS/Pierre Albouy 

United Nations Secretary-General Ban Ki-moon (L) talks to United Nations High Commissioner for Refugees Filippo Grandi after his address to the 67th session of EXCOM of the UNHCR in Geneva, Switzerland, October 3, 2016. REUTERS/Pierre Albouy 

United Nations secretary-General Ban Ki-moon addresses the 67th session of EXCOM of the United Nations High Commissioner for Refugees (UNHCR) in Geneva, Switzerland, October 3, 2016. REUTERS/Pierre Albouy 

United Nations Secretary-General Ban Ki-moon addresses the 67th session of EXCOM of the United Nations High Commissioner for Refugees (UNHCR) in Geneva, Switzerland, October 3, 2016. REUTERS/Pierre Albouy