Obviously Syria and its people have been affected, the majority of Syria’s 5.6 million refugees have fled, by land and sea, through Syria's borders to other countries in the middle east. About 5.6 million Syrians are refugees, and another 7 million people are displaced within Syria. Nearly 12 million people in Syria need assistance. At least half of the people affected by the Syrian refugee crisis are children. Healthcare centers and hospitals, schools, utilities, and water and sanitation systems are damaged or destroyed. Historic landmarks and once-busy marketplaces have been reduced to rubble. More than six million refugees left Syria during the civil war, of whom over five million are registered as refugees by the UNHCR as of mid-2019. Most of them fled to neighboring countries such as Turkey, Lebanon, Jordan and Iraq, as well as European nations like Greece, Germany and Sweden. Since 2017, tens of thousands have returned. The war resulted in large-scale displacement in the country The UNHCR estimates internally displaced people at 7 million. A further 70,000 people were trapped on the border with Jordan at Rukban in 2016-18, with up to 40,000 still there in 2019.