Iraq has been in the headlines for a number of years, but has been a really big story since the US-led invasion of the country in 2003.
At the time there were fears that the leader of Iraq, President Saddam Hussein, would use very dangerous weapons - called weapons of mass destruction (WMDs) - to attack other countries.
Control of the country was taken from Saddam Hussein very quickly, and he was captured. He is now facing trial for murder.
Iraq is still a violent country though, and there are thousands of soldiers from other countries there trying to keep the peace.
Eventually it's hoped that the a government elected by Iraqis run the country and Iraq will be safe enough for the foreign soldiers to leave.