Central American migrants wait outside the Mexican Commission for Refugee Assistance (COMAR) in Tapachula, Mexico, June 14, 2019. Developing countries, not rich Western nations, are bearing the brunt of the world's refugee crisis and are hosting most of the record 70.8 million displaced people who have fled war and persecution. REUTERS/Jose Cabezas

Migrants receive food and clothes at the migrant camp Vucjak, in Bihac area, Bosnia and Herzegovina, June 19, 2019. Half of the world's forcibly displaced are children and the 2018 total is the highest in nearly 70 years, the U.N. refugee agency said in its annual flagship report, Global Trends. REUTERS/Antonio Bronic

Displaced children that fled from their villages in northern Burkina Faso, following attacks by assailants, push carts loaded with water containers at a school on the outskirts of Ouagadougou, Burkina Faso June 15, 2019. REUTERS/Anne Mimault

Venezuelan migrant Crisyesmil Rosales, 23, poses for a picture with her children Andres, 6, Aranza, 2, Sara, 20 months, her sister Angeli, 8, and her brother Abraham, 6, while they wait to process their documents at the Ecuadorian-Peruvian border service center, before continuing their journey to Arequipa, on the outskirts of Tumbes, Peru, June 16, 2019. Rosales is travelling with her siblings, her children and an aunt. She said that after eight days travelling, the toughest thing of her journey has been to sleep with the children on the street. "My mother is in Peru and as we thought they were going to close the border, she decided to send us money to travel," she said. "My mom was desperate there in Venezuela because if you are able to eat, you can't dress, and if you dress, you don't eat. That is something hard." "I want to give the best to the children, that is the most important. I want to work and a have good job to move forward." REUTERS/Carlos Garcia Rawlins

Palestinian refugee children play in the street in Al-Baqaa Palestinian refugee camp, near Amman, Jordan, June 13, 2019. REUTERS/Muhammad Hamed

Palestinian refugee Tawfiq Abdel Rahman Al-Dalu, born in 1945 in Sidna Ali village, north of Jaffa, poses at his shop in Al-Baqaa Palestinian refugee camp, near Amman, Jordan, June 19, 2019. REUTERS/Muhammad Hamed