In 2017, 55% of the world`s refugees came from three nations: South Sudan, Afghanistan and Syria. Of the displaced, 17% are housed in Europe. In April 2018, 15,481 refugees arrived in Europe by sea in the first few months of the year alone. An estimated 500 people have died. In 2015, there were a total of 1.02 million arrivals by sea. Since then, there has always been an influx, although in constant decline.  The influx of states such as Nigeria and Pakistan is a mixture of economic refugees and refugees fleeing violence and war, such as the Boko Haram insurgency in northeastern Nigeria and the war in northwestern Pakistan.    On 7 September 2015, France announced the reception of 24,000 asylum seekers over two years; Britain has announced that it will accept up to 20,000 refugees, mainly vulnerable children and camp orphans in Jordan, Lebanon and Turkey; And Germany has committed $6.7 billion to deal with the migration crisis.   Austria and Germany have also warned that they should not keep pace with the current pace of the influx and that they must first slow down.  On 9 March 2016, Croatia began implementing border restrictions at the border with Serbia in order to restore Schengen rules.  Since November 2016, Human Rights Watch (HRW) has noted that Croatia has pushed refugees back to Serbia and Bosnia and Herzegovina, in violation of the EU Charter of Fundamental Rights and the 1951 Refugee Convention, and subjected them to extreme violence, including hitting people with their fists, hitting them, and getting them to run between the ranks of the police.
 Refugees also talk about forcible undressing to underwear, beatings with branches, torture with electroshocks, sexual abuse and nails ripped off by masked Croatian policemen.  Photos of humanitarian organizations show refugees with bloody scratches, broken arms, broken teeth and dark red spots on their backs.  A study published by the Pew Research Center on 11 July 2016 concluded that “Europeans fear that a wave of refugees will mean more terrorism, fewer jobs.” Half of the Italian and Swedish population attribute crime to immigrants.  Article 26 of the Schengen Agreement stipulates that carriers denied in the Schengen area must pay both for penalties and for the return of rejected persons.  The 2001/51/EC European Directive contains other clauses in this regard.  This has prevented visa-free migrants from being admitted to planes, boats or trains entering the Schengen area and has led them to resort to smugglers.  As a general rule, humanitarian visas are not issued to refugees seeking asylum.  In order to avoid a new influx of war-in-war refugees from northern Syria to Turkey, Turkish President Tayyip Erdogan agreed thursday with President Vladimir Putin to end fighting between Russian-backed Syrian armed forces and Turkish troops.