14 February 2017 Last updated at 14:18 GMT
The fighting has forced millions of people to leave their homes.
One of the results of this is that families can become separated from each other as they make their journey away from their home countries.
Milad told Newsround how the war in Syria led to his family being split up, and how he travelled to Germany on his own to be reunited with his older brother.
Click here to watch Brothers and Sisters: A Newsround Special.
There are many conflicts taking place in the Middle East.