Multiple civil wars have raged in Sudan on and off since independence in 1956.
The Geneva-based Small Arms Survey, a research organisation, calculates there were 2.76 million illegally-held weapons in Sudan in 2017, or 6.6 guns for every 100 people.
Sudan's army launched a disarmament campaign Tuesday to seize all illegal weapons in a country left awash with guns after decades of civil war, by blowing up 300,000 firearms.
"Our country has suffered enough," said Lieutenant General Ibrahim Jaber Ibrahim, a member of the sovereign council, the highest body in the country, at a ceremony in the desert.