Burundi is 11 times larger than Luxembourg.
Area: 27,830 km2 World Factbook
Population: 10,395,931 (July 2014) World Factbook
Burundi, officially the Republic of Burundi, is a landlocked country in the African Great Lakes region of Southeast Africa, bordered by Rwanda to the north, Tanzania to the east and south and the Democratic Republic of the Congo to the west. It is also sometimes considered part of Central Africa. Wikipedia
Area: 2,586 km2 World Factbook
Population: 520,672 (July 2014) World Factbook
Luxembourg, officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. Wikipedia