This makes Juba, with its police, air connections and solid tarmac link to Uganda, a magnet.
ECONOMIST: Independence has left South Sudan with much to do
Last week he visited South Sudan's capital city Juba and pledged to support the referendum's results.
On Wednesday, a memorial service was held for the Indian peacekeepers at the Unmiss compound in Juba.
BBC: Bodies of Indian UN troops killed in South Sudan reach Delhi
The south has the bulk of the oil - and 98% of Juba's budget depends on it.
The government in Khartoum accuses South Sudan of backing the rebels - a claim denied by Juba.
The unanimously backed resolution calls on Khartoum and Juba to resume negotiations on disputed issues within two weeks.
They were headed for the safety of Juba, South Sudan's capital, a sign that renewed fighting is expected.
ECONOMIST: Independence has left South Sudan with much to do
Yau Yau first rebelled against Juba after he failed to win a parliamentary seat in the 2010 general elections.
There is grit in my teeth from the dust on Juba's dirt roads.
It fears that if it takes Juba while the government is still strong it would be vulnerable to counter-attack.
The alliance's plan is to cut off Khartoum and take Juba at the same time, coming to power united.
From what I understand, the death toll in Juba has been much lower.
Sudan's president invited Mr Kiir to Khartoum for further talks and he also addressed worshippers at a mosque in Juba.
BBC: President Bashir orders South Sudan border to be opened
In Juba, New York and The Hague, interested parties are quietly exploring an alternative way out of the present impasse.
Billy Graham, in Lui near Juba in southern Sudan, where four American doctors have treated over 100, 000 patients since 1998.
The little aircraft has been flying a long loop out of Juba, the capital, over what will become the Bandingalo National Park.
Two years ago I drove north of Juba through Terakeka County past burnt villages and camps for people displaced by inter-ethnic violence.
"We hope the withdrawal will be orderly and that both sides will refrain from further military action, " he told reporters in Juba.
CNN: South Sudan says it is withdrawing from disputed oil region
Now it once again has the 60, 000-strong government garrison at Juba surrounded.
CNN's Ben Brumfield in Atlanta and journalists Jared Ferrie in Juba, South Sudan, and Ishmail Kushkush in Khartoum, Sudan, contributed to this report.
In 2011 he accepted an amnesty offer by President Salva Kiir and returned to Juba where he was promoted to an SPLA general.
Relative to local incomes, Juba is the second most expensive city in the world in which to start a business, after Congo's Kinshasa.
ECONOMIST: Welcome to one of the world��s whackiest economies
Sudanese President Omar al-Bashir was scheduled to travel to the southern capital of Juba earlier this month to meet with his counterpart Salva Kiir.
Khartoum has repeatedly denied having any ties to Yau Yau's rebels and counter-accuses Juba of supporting rebels in Sudan's South Kordofan and Blue Nile states.
They have never agreed on the transit fees that Juba should pay Khartoum for pumping oil through its pipelines and using Sudan's oil export infrastructure.
With both sides digging in their heels, the peace talks, being mediated by the southern Sudanese in the town of Juba, seemed doomed to failure.
It also means that Juba hogs the country's power and wealth.
ECONOMIST: Independence has left South Sudan with much to do
In a Policy Paper launched today in the South Sudanese capital, Juba, the UN agency documents the scale of educational deprivation across much of the country.
Returning to Juba from a visit to Abyei, the SPLM's Secretary General Pagan Amum said the situation in the border region was now calm, although still tense.
The town of Bor, half an hour by plane down the Nile from Juba, was once a busy trading post but now feels on a different planet.
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