Why are so many immigrants coming from Syria and Afghanistan? Please answer quick!

Afghanistan refugees are nationals of Afghanistan who left their country as a result of major wars or persecution. Syrians are leaving their homes when life becomes unbearable. Some of the top reasons they cite include: Violence: Since the Syrian civil war began, an estimated 500,000 people have been killed, including more than 55,000 children.

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the only other powers were germany russia and uk and they were too busy fighting each other wearing each other down   that the us was becoming strong and they were becoming weaker