The countries generating the most refugees are all conflict zones. The three biggest refugee populations are from Afghanistan, Somalia and Syria, which together account for more than half of all the world's refugees, according to an annual report by the Geneva-based UN refugee agency. By descending order, the top 7 are:
Afghans have been fleeing the country in droves for decades, and their country is still the single biggest source of refugees although Syria has emerged as a strong second. As of the end of 2013, 2.56 million Afghan refugees were living in 86 countries, meaning one of every five refugees in the world is from Afghanistan. Most are in Pakistan or Iran, followed by Germany.
A heavy flow of Syrians fleeing the civil war, now in its fourth year, was behind a huge increase in the overall number of refugees last year. The fighting forced 2.47 million people to flee the country and left 6.5 million others internally displaced by the end of 2013. Only two years before that, Syria ranked 36th in the UN's annual Global Trends Report on source countries for refugees.
Most of the refugees have gone to neighboring countries, especially Lebanon, which has been strained by the influx. Syria's exodus last year was the single-biggest since the 1994 Rwanda genocide, when 2.3 million fled their homes.
A Syrian refugee man begs in the street with a baby lying on his lap in Istanbul. Nearly half of Syria's population has fled their homes since the uprising against President Bashar al-Assad's rule erupted in March 2011. (AFP photo)
Syrian refugees sit inside their tent at a Syrian refugee camp in the eastern Lebanese town of Majdal Anjar, Lebanon. (AP photo)
The number of 1.12 million refugees from the lawlessness in Somalia is little changed from a year earlier. The pace of the exodus into Kenya and Ethiopia slowed a bit in the past two years amid hopes for improved security, but 9,700 Somalis still risked journeys across the Gulf of Aden or the Red Sea to reach Yemen.
A displaced Somali boy in crutches kicks a football in front of makeshift shelters at the Sayyid camp in the Howlwadaag district of Mogadishu. (AFP photo)
In 2013, the number of Sudanese refugees rose to 649,300, an increase of 80,000 from the year before. Chad and South Sudan were the biggest recipients. Since conflict broke out in 2011, some 294,000 Sudanese have fled the country.
A file photo of refugees who fled violence in South Sudan and crossed the border into Uganda. (AP photo)
Democratic Republic Of Congo
At least 55,000 people originating from the Democratic Republic of the Congo were forced to seek refuge in neighboring countries. Still, the overall number of DRC refugees dropped from 509,500 at the start of 2013 to 499,500 a year later. The main reason was the return of almost 63,000 DRC refugees from the Republic of Congo. Another reason the number dropped resulted from the verification of registration records in Uganda and other countries in the region.
Refugee children from the Democratic Republic of Congo at the Nyakabande Transit Centre in Kisoro District, in Uganda. (AFP photo)
The Asian nation has generated the sixth-most refugees in the world, some 479,600 by the end of 2013. Much of this is from the statistical inclusion of 57,500 unregistered people from Myanmar in the refugee camps in Thailand, a change from the past.
There were 401,400 Iraqi refugees in 2013, far less than the 745,900 reported a year earlier. Many had fled into Syria and Jordan, but with the war raging next door the number of Iraqi refugees reported in Syria dropped from 471,400 down to 146,200. Many other Iraqis fled to Iran and Germany.