Aleppo is a city in the country of Syria, in the Middle East.
The country is in the middle of a civil war that has been going on for over five years.
It is being fought between soldiers who support the president of Syria, Bashar al-Assad, and a group of fighters known as rebels, who don't want him to be in power anymore.
The city has been divided between the two sides for the last four years.
But now, the government is close to taking over the whole city. Leah explains the situation.