migration can be seen as positive contribution to society whereas some believe it should be limited which can lead to tensions for example,
EU allows for free movement between member states, in 2015 around 4% of people born in the EU were living in a different country
2019, 600,000 people migrated from other EU states to Germany - accounting for 40% of total migration
perceptions are different, e.g. in 2018, 62% of Swedish nationals believe migrants make the country stronger, whereas only 10% of Greeks