For several years, the issue of migrants in Europe has been getting serious and the number of them is increasing more than past years. Definitely, migrants suffer from many things, such as food, shelter, and discrimination, but also European countries are struggling to accept them. In the past, most of them were from Afghanistan; however, now, they are mostly from Syria and crossing the Mediterranean Sea to go to Europe. Mainly, the cause of this issue could be civil war. In Syria, the civil war started about five years ago, but continues today. In addition, ISIS invaded a part of Syria so people in Syria and the other countries have to leave their countries to survive, even they like their countries very much. Economics in these countries also might be a part of causes of this issue. Specifically, in Syria, people cannot earn money and the price of things, such as food and houses are high so they cannot live there and have to choose to be migrants. To solve this issue, not only European countries, but also other developed countries, such as the United States and Japan, have to care about migrants. They cannot accept them to their countries directly, but they can donate money, food, water, and shelter for them. Therefore, this issue is not caused by only civil war, but ISIS is related too. This is why this issue is very complicated. People cannot understand this issue by knowing Syria and the other countries so they must know other things, such as ISIS or religious differences in these countries, to understand this issue. In addition, people have to know this issue because it might relate to the economics of the world so it is not issue for migrants and European countries, but also it is the one of issue in the world.