The regions of Chad are divided into 53 departments. The departments are listed below, by region:

Chad ⁱ/ˈtʃæd/ (French: Tchad, Arabic: تشاد‎ Tšād), officially known as the Republic of Chad, is a landlocked country in Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest, and Niger to the west. Due to its distance from the sea and its largely desert climate, the country is sometimes referred to as the "Dead Heart of Africa".

Chad is divided into multiple regions: a desert zone in the north, an arid Sahelian belt in the centre and a more fertile Sudanese savanna zone in the south. Lake Chad, after which the country is named, is the largest wetland in Chad and the second largest in Africa. Chad's highest peak is the Emi Koussi in the Sahara, and N'Djamena, (formerly Fort-Lamy), the capital, is the largest city. Chad is home to over 200 different ethnic and linguistic groups. Arabic and French are the official languages. Islam and Christianity are the most widely practiced religions.

Beginning in the 7th millennium BC, human populations moved into the Chadian basin in great numbers. By the end of the 1st millennium BC, a series of states and empires rose and fell in Chad's Sahelian strip, each focused on controlling the trans-Saharan trade routes that passed through the region. France conquered the territory by 1920 and incorporated it as part of French Equatorial Africa.

Jerome Robert Corsi (born August 31, 1946) is an American author, political commentator and conspiracy theorist best known for his two New York Times bestselling books: The Obama Nation and Unfit for Command (with co-author John O'Neill). Both books, the former written in 2008 and the latter in 2004, attacked Democratic presidential candidates and were criticized for including numerous inaccuracies.

In other books and columns for conservative websites such as WorldNetDaily and Human Events, Corsi has discussed topics that are considered conspiracy theories in some circles, such as the alleged plans for a North American Government, the theory that President Barack Obama is not an American citizen; criticism of the United States government for allegedly covering up information about the terrorist attacks of September 11, 2001, promoting the Abiogenic hypothesis of the origin of oil (arguing that oil is produced from chemical reactions in the Earth, in contrast to the general consensus of the scientific community that oil is produced from organic materials, such as zooplankton and algae), and alleged United States support of Iran in its attempts to develop nuclear weapons.