Migrant Routes

Frontex recognises the following general routes on sea and on land used by irregular migrants to enter the EU: 

 Migrants along the Balkan route crossing from Serbia into Hungary, 24 August 2015

the Western African route
the Western Mediterranean route
the Central Mediterranean route
the Apulia and Calabria route
the circular route from Albania to Greece
the Western Balkan route (from Greece through Macedonia and Serbia to Hungary or Croatia)[109]
the Eastern Mediterranean route
the Eastern Borders route
In addition, an Arctic route (from Russia via Kirkenes to Norway) had emerged by September 2015  and was becoming one of the fastest-growing routes to enter Western Europe by November 2015.

European migrant crisis

The European migrant crisis or European refugee crisis began in 2015, when a rising number of refugees and migrants made the journey to the European Union (EU) to seek asylum, traveling across the Mediterranean Sea or through Southeast Europe. They came from areas such as Western and South Asia, Africa, and the Western Balkans. According to the United Nations High Commissioner for Refugees, the top three nationalities of the over one million Mediterranean Sea arrivals between January 2015 and March 2016 were Syrian (46.7%), Afghan (20.9%) and Iraqi (9.4%). Of the refugees and migrants arriving in Europe by sea in 2015, 58% were men, 17% women and 25% children. The number of deaths at sea rose to record levels in April 2015, when five boats carrying almost 2,000 migrants to Europe sank in the Mediterranean Sea, with a combined death toll estimated at more than 1,200 people. 
The shipwrecks took place in a context of ongoing conflicts and refugee crises in several Asian and African countries, which increased the total number of forcibly displaced people worldwide at the end of 2014 to almost 60 million, the highest level since World War II. Amid an upsurge in the number of sea arrivals in Italy from Libya in 2014, several European Union governments refused to fund the Italian-run rescue option Operation Mare Nostrum, which was replaced by Frontex’s Operation Triton in November 2014. In the first six months of 2015, Greece overtook Italy as the first EU country of arrival, becoming, in the summer 2015, the starting point of a flow of refugees and migrants moving through Balkan countries to northern European countries, mainly Germany and Sweden. Since April 2015, the European Union has struggled to cope with the crisis, increasing funding for border patrol operations in the Mediterranean, devising plans to fight migrant smuggling, launching Operation Sophia and proposing a new quota system to relocate and resettle asylum seekers among EU states and alleviate the burden on countries on the outer borders of the Union. Individual countries have at times reintroduced border controls within the Schengen Area, and rifts have emerged between countries willing to accept asylum seekers and others trying to discourage their arrival.
According to Eurostat, EU member states received over 1.2 million first time asylum applications in 2015, a number more than double that of the previous year. Four states (Germany, Hungary, Sweden, and Austria) received around two-thirds of the EU’s asylum applications in 2015, with Hungary, Sweden, and Austria being the top recipients of asylum applications per capita. The main countries of citizenship of asylum seekers, accounting for more than half of the total, were Syria, Afghanistan and Iraq. 

Refugees of Sudan

Sudanese refugees are persons originating from the country of Sudan, but seeking refuge outside the borders of their native country. In recent history, Sudan has been the stage for prolonged conflicts and civil wars, as well as environmental changes, namely desertification. These forces have resulted not only in violence and famine, but also the forced migration of large numbers of the Sudanese population, both inside and outside the country’s borders. Given the expansive geographic territory of Sudan, and the regional and ethnic tensions and conflicts, much of the forced migration in Sudan has been internal. Yet, these populations are not immune from similar issues that typically accompany refugeedom, including economic hardship and providing themselves and their families with sustenance and basic needs. With the upcoming creation of a South Sudanese state, questions surrounding southern Sudanese IDPs may become questions of South Sudanese refugees.
Reasons for fleeing 
The movement of populations within and around the territory of modern-day Sudan and its neighbors for trade, opportunity, climatic variations and conflicts is not unique to recent or contemporary history. But these movements have intensified and become more concentrated for because of prolonged civil war, violence between various populations along ethnic and political lines, droughts and subsequent famines in 1980s, and humanitarian emergencies and famine cause by improper response to previous crises by international aid organizations. Movements of people are also inherently more problematic across international boundaries, which may be contradictory to natural population flows within the region. 
Internally displaced Sudanese 
An estimated 3.2 million Sudanese are internally displaced persons (IDPs), and another 78,000 are in IDP-like situations. 300,000 of these IDPs were newly displaced in the first months of 2013 due to renewed intertribal conflict. Continuing insecurity, combined with government restrictions on humanitarian access in the Darfur region, South Kordofan, and Blue Nile States, has hampered UNHCR’s activities. Historically, refugee assistance programs in Sudan have relied on the definition of a refugee as one who has crossed an international frontier. This definition is increasingly inappropriate worldwide and especially so in Sudanic Africa, where the number of internally displaced persons (IDPs) exceeds the number of refugees. 

Refugees of Iraq

Refugees of Iraq are Iraqi nationals who have fled Iraq due to war or persecution. Throughout the past 30 years, there have been a growing number of refugees fleeing Iraq and settling throughout the world, peaking recently with the latest Iraq War. Precipitated by a series of conflicts including the Kurdish rebellions during the Iran–Iraq War (1980 to 1988), Iraq’s Invasion of Kuwait (1990) and the Gulf War (1991), the subsequent sanctions against Iraq, and culminating in the violence during and after the American-led invasion and occupation of Iraq, millions have been forced by insecurity to flee their homes in Iraq. Unlike most refugees, Iraqi refugees have established themselves in urban areas in other countries rather than in refugee camps. In April 2007, there was an estimate of over 4 million Iraqi refugees around the world, including 1.9 million in Iraq, 2 million in neighboring Middle East countries, and around 200,000 in countries outside the Middle East. The United Nations High Commissioner for Refugees (UNHCR) has led the humanitarian efforts for Iraqi refugees. The Iraqi displacement of several million is the largest in the Middle East, and is much larger than the number of Palestinians who were displaced in 1948 during the creation of the state of Israel.

Iraqi refugee populations face unique challenges, particularly since they are located in urban centers rather than in refugee camps. Access to public services like health care and education is very limited for refugees. In late 2007, less than 40% of Iraqi refugee children attended school. In many host countries, education is offered free of charge to all children, including refugees. However, the cost of books, uniforms, and a lack of inexpensive transportation prevents many Iraqi refugee children from actually attending school. There is little data available on the health status of Iraqi refugees, but limited reports indicate that they suffer worse health than that of their host populations. Psychological health care is especially crucial yet lacking, as many Iraqis suffer psychologically as a result of witnessing extreme violence. The current lack of health care contrasts greatly to the high-quality and accessible health services offered in Iraq before the 2003 invasion.

International aid 
On April 17, 2007 an international conference on the Iraqi refugee crisis began in Geneva, Switzerland. Attendees included Human Rights Watch representatives, US Undersecretary of State Paula Dobriansky, United Nations High Commissioner for Refugees representatives and members of 60 other Non-Governmental Organizations. The World Health Organization began a two-day conference in Damascus, Syria, on July 29, 2007. The conference addressed the health requirements of the more than two million refugees from Iraq. Aside from the WHO, participants in the conference included the International Committee of the Red Cross, the Red Crescent, and various UN agencies. On September 18, 2007, the UNHCR, WHO, UNICEF, UNFPA, and WFP launched an appeal for $84.8 million to help host countries meet health and nutrition needs of Iraqi refugees. The funds support clinics, facilities, medicines, and medical supplies. In 2007, Jordan, Syria, Lebanon, Egypt, Turkey, UN agencies, and NGOs assisting Iraqi refugees received about $60 million to better provide for Iraqi refugee populations.  $27 million was allocated to health care as part of the UN joint health appeal. As of 2007, the US has pledged $18 million and the European Union has pledged 50 million euros to assist Iraqi refugees.

Afghan Refugees

Afghan refugees are Afghanistan nationals who fled their country as a consequence of the long-going Afghan conflict, lasting since 1978. Ever since the Soviet invasion of Afghanistan, refugees have fled into the surrounding states. After the Soviets left, civil war, Taliban conquest, and most recently the Western-led invasion after September 11, 2001 have meant constant warfare in Afghanistan. Millions have fled the violence, then in times of relative peace returned, only to flee again when renewed fighting broke out. About six million Afghan refugees have fled to neighboring Pakistan (mainly Khyber Pakhtunkhwa province) and Iran, making Afghanistan the largest refugee-producing country in the world, a title it has held for 32 years.
The mass majority of Afghan refugees (95%) are located in either Iran or Pakistan. Some NATO countries that were part of the NATO forces took in refugees or Afghans that worked with their respective forces.  Ethnic minorities, like Afghan Sikhs and Hindus, often fled to India. In 2013-2014, 2.4 million Afghan refugees were living in Iran, with only 0.8 million of them being registered as migrants who entered legally. Similarly 1.5 million officially registered Afghan refugees were reported to be living in Pakistan in addition to approximately one million more unregistered refugees. In December 2014, there was a terrorist attack on a school in Peshawar by the Pakistani Taliban, and over 100 school children were killed. Following the attack, Afghan refugees in Pakistan began to encounter serious harassment and often were told to return to Afghanistan. There was a mass exodus of tens of thousands of refugees, which as of February 2015 was ongoing.

Chechen refugees

During the inter-ethnic strife in Chechnya and the two separatist First and Second Chechen Wars, hundreds of thousands of Chechen refugees have left their homes and left the republic for elsewhere in Russia and abroad.

In Russia 
The Internal Displacement Monitoring Centre (IDMC) reports that hundreds of thousands of people fled their homes in Chechnya since 1990. This included majority of Chechnya non-Chechen population of 300,000 (mostly Russians, but also Armenians, Ingush, Georgians, Ukrainians and many more) who had left the republic in the early 1990s and as of 2008 never returned. Many ethnic Chechens have also moved to Moscow and other Russian cities. According to the 2008 study by the Norwegian Refugee Council, some 139,000 Chechens remained displaced in the Russian Federation.
In the nearby republic of Ingushetia, at the peak of the refugee crisis after the start of the Second Chechen War in 2000, estimated 240,000 refugees almost doubled the Ingushetia’s pre-war population of 300,000 (350,000 including the refugees from the Ingush-Ossetian conflict) and resulting in an epidemy of tuberculosis. Estimated 325,000 was the total number of people that have entered Ingushetia as refugees in the first year of the Second Chechen War. Some 185,000 were in the republic already by November 1999 and 215,000 lived in Ingushetia by June 2000. In October 1999 the border with Ingushetia was closed down by the Russian military and a refugee convoy bombed after being turned away.

Thousands of them were pressured to return by the Russian military already in December 1999, and the refugee camps were forcibly closed after 2001 by the new Chechen government of President Akhmad Kadyrov and the new Ingush government of President Murat Zyazikov. About 180,000 Chechens remained in Ingushetia by February 2002 and 150,000 by June 2002, most of them housed in a “tent city” camps, abandoned farms and factories and disused trains, or living with sympathetic families. As of early 2007, less than 20,000 Chechens remained in Ingushetia and many of them were expected to integrate locally rather than return to Chechnya.

As of 2006, more than 100,000 people remain internally displaced persons (IDP) within Chechnya, most of whom live in substandard housing and poverty. All official IDP centers in the republic were closed down and the foreign NGO aid severely limited by the government (including the ban of the Danish Refugee Council).
Since 2003 there is a sharp surge of Chechen asylum-seekers arriving abroad, at a time when major combat operations had largely ceased. One explanation is the process of “Chechenization”, which empowered former separatists Ahmed Kadyrov and his son Ramzan Kadyrov as the leaders of Chechnya (indeed, Chechen refugees indicated that they feared Chechen security forces more than Russian troops). Another explanation is that after a decade of war and lawlessness, many Chechens have given up hope of ever rebuilding a normal life at home and instead try to start a new life in exile.