A third of the population has been forced from their homes creating one of the world's worst refugee crises, tens of thousands have been killed and a famine and food shortages have threatened the lives of millions more.
"Today I have nothing to celebrate," said 34-year-old father of three Ariik Majok, who works as a night watchman in the capital.
On July 9, 2011, dignitaries from around the world joined crowds of South Sudanese to celebrate the country's independence from Sudan, to the north, after decades of civil war.
The war since then has been characterised by ethnic fighting, sexual violence and extreme brutality with civilians the primary victims.
More From This Section
Last month, the government announced it was cancelling official independence celebrations for the second year running. "Our situation does not require us to celebrate," said spokesman Michael Makuei.
On Sunday morning in Juba there were no celebratory posters or banners, rather an air of mourning for the lost promise of independence pervaded the quiet streets.
"I did not expect this," he said of the war, spiralling inflation and food crisis.
Wani John, a 39-year-old civil servant, said he too saw nothing to celebrate.
"There is no peace and stability. People are dying and our leaders are not solving the situation. I am not a happy citizen," he said. "What we simply want is peace."
The laments of residents in Juba were echoed by international aid agencies which are struggling to address South Sudan's multiple crises and to raise funds for emergency relief work.
An estimated two million children have been uprooted during more than three-and-a-half years of war and at least 2,500 have been killed, UNICEF said.