The Democratic Republic of the Congo – the world's leading manufacturer of cobalt, which powers mobile phones and electrical appliances ̵
Three leaders have emerged in the race for the succession of President Joseph Kabila.
Here are five things to know that play the land through its mineral wealth in the world economy:
1) There has never been peaceful power transfer
Since independence in 1960, violence has always been the transfer of power from a leader accompanied to the other.
Joseph Kasavubu became president after the elections took place in 1960, a month before independence, and Patrice Lumumba became prime minister.
But Lumumba was later released after a power struggle. In 1961, the intervention of the former colonial power led Belgium to surrender to rebels who had executed him, cut his body to pieces and dissolved them in acid.
The power behind the throne in the early years was army chief Mobutu Sese Seko. who became president after a 1965 coup d'état.
After 32 years in power, he was expelled by rebels who were supported by neighboring countries.
His successor, rebel leader Laurent Kabila, was assassinated in 2001 by his bodyguard. His son Joseph Kabila replaced him at the age of 29, making him the youngest leader in the world.
Two years after leaving power, Kabila resigns. Many Congolese hope that the vote on Sunday will lead to a peaceful transfer of power to his successor.
2) A land of riches
The country is central to the upturn in the sale of electric vehicles.
Among a plethora of other metals DR Congo says it owns more than half of the world's cobalt supply – an integral part of batteries for electric vehicles and mobile phones.
Theoretically, the reserves of cobalt and other minerals such as diamonds, copper and gold should make the DRC one of the richest countries in Africa, but the population is one of the poorest.
The DRC has been exploited for its wealth since the arrival of the first European explorers in the 15th century.
In the 19th century, King Leopold II of Belgium led the country as his personal colony and forced the humans To collect wild rubber for tires. Feeding Europe's Huns For bicycles and the next century for cars.
Later, copper became a major export commodity for the colonial rulers.
In the aftermath of independence Mobutu became rich when the country became poor. Today, corruption and mismanagement prevent wealth from being used to lift people out of poverty.
3) It is a very large town
DR Congo is about the size of the Western European mainland.
It is very important because of its poor infrastructure It is difficult to get around and represents the logistical challenge to the organization of the elections.
The only expressway in the country is the Congo River, and there are no main roads that connect the Connect west with the east.
The government has failed to tackle the Congo offering UN logistical aid, which has had a peacekeeping force in the country for nearly 20 years.
It was a major challenge to ensure that everything was delivered to the 75,000 polling stations in good time – and the election commission had to delay the poll by one week
4) Battery-powered voting
Large parts of the DR Congo are without fluidity Water or regular power supply, and this is a problem when ballots are submitted with electronic voting machines.  Although e The electronic vote has been used elsewhere, this is the first time that this exact machine has been tried, raising the fear that it will not be tested in an election scenario.
Each voter enters the voting booth to make a selection by selecting candidates on a tablet-like device.
This selection is then printed on a ballot and submitted by the voter. These paper votes will then be counted. The machines will also carry an electronic set-up to verify the results.
The opposition parties have asked if they will deliver free and fair elections.
Given the challenges of poor infrastructure and the short time, there are also concerns The machines were in the country where the system may not be robust enough.
As if to highlight the issues, a fire was burned in one of the electoral main camps weeks before the vote, destroying the ballots and more than two-thirds of the voting machines assigned to the capital, Kinshasa.
As a result, the vote was delayed by one week.
- Why do voters distrust electronic voting?
5) War and Ebola destabilize the East
The eastern part of the DR Congo has been hit hardest by the war for the last two decades.
Many militant groups operate across the country, but the biggest security challenge is currently Beni in North Kivu.
Not only has the case th The dangerous Ugandan-Islamist militia group, the Allied Democratic Forces (ADF), which initiated attacks on civilians, government forces and the United Nations, but it is also an active Ebola zone postponing the vote in two areas of the east.
The outbreak of Ebola was confirmed earlier this year and nearly 500 people have been infected so far.
The Combination of Instability and Lack of Trust in United Nations Aid – Because ADF attacks occur despite the presence of peacekeepers, this means that the outbreak is particularly difficult to combat.
It is the second largest outbreak since the virus was discovered in 1976 in DR Congo, then Zaire.
The biggest killed more than 11,000 people in West Africa between 2013 and 2016 – mainly in Liberia, Guinea and Sierra Leone.