The power-sharing government in DR Congo is marking its first anniversary without any official celebrations.
Rebels have not yet been integrated into the army
Given the recent insurgency in the east earlier this month, the only planned event was a national broadcast by President Joseph Kabila, a government spokesman said.
Former rebels were brought into the government under a peace deal to end five years of war
But the key task of integrating rebels into a new army has not been achieved.
Some former rebel commanders briefly took control of the eastern town of Bukavu four weeks ago, sparking fears that the peace deal could unravel.
More than 30,000 people have fled the area around Bukavu for neighbouring Rwanda and Burundi.
Mr Kabila accused Rwanda, which backed the rebels during the war, of again destabilising the country.
Rwanda denied the accusations and said Congolese troop deployment towards their common border were a hostile act.
But tensions were reduced after Mr Kabila met his Rwandan counterpart in Nigeria last week.
The BBC's Rob Walker in the third city, Kisangani, says that large parts of DR Congo are now stable, although violence continues in the east.
Trade once again flows along the vast Congo river, he says.
Mobile phone companies and other businesses have spread out from the capital, competing for the new opportunities they hope peace will bring.
But our correspondent says that lingering mistrust between the former belligerents has left the transitional government paralysed, unable to take decisions about reconstructing a country where three-million people died in the war.
The power-sharing government is supposed to organise elections next year.