After months of strategy and diplomacy in Year 6 of the Syrian civil war, a ceasefire agreement brokered by the United States, Russia and Jordan appears to be holding.
Activists monitoring the area say, so far, there have been no reports of clashes or air strikes in the area.
US president Donald Trump and his Russian counterpart Vladmir Putin announced the truce late last week after meeting for the first time at the G20 summit in Germany.
The deal covers Deraa, Quneitra and Sweida provinces, where the government and rebel groups are also fighting IS militants, not included in the agreement.
Mr Trump has tweeted the ceasefire "will save lives" and it is time to work constructively with Russia to move forward.
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A spokesman for the Syrian opposition delegation, Dr Yahya Al-Aridi, has welcomed the deal.
"We felt that there is an international, serious endeavour, an effort to bring peace and tranquillity to Syria."
The United States and Russia had talked several times about creating a so-called de-escalation zone in south-west Syria.
Talks centred around Deraa province, on the border with Jordan, and nearby Sweida and Quneitra, which border the Israeli-controlled Golan Heights.
The area, home to tens of thousands of people, forms a centre of the resistance south of the Syrian capital, Damascus.
Intense air strikes had pounded Deraa's opposition territory in recent weeks, but monitors say calm has prevailed since the ceasefire went into effect.
The head of the Union of Syrian Medical Relief Organisations, Zaydoun Al-Zayoubi, has told the BBC Syrians just want the bloodshed to end.
"Any ceasefire is welcomed by the population, wherever in the country. Everyone now wants just a cessation of hostilies, wants to stop this war. I've been talking to my relatives there, and everyone is happy, because no-one wants to see jet fighters, no-one wants to see barrel bombs, no-one wants to see fighting."
But some in Syria say the deal is limited.
A rebel-group commander, Aby Odai Almadani, says he would like to see it extended to the entire country.
"We don't want a partial solution to the Syrian problem. We want a comprehensive solution for our families, who were forcibly displaced from their country and whose homes, villages and infrastructure were destroyed. There are martyrs, injured, disabled people. These solutions are partial and do not fulfil the aspirations of the revolutionary Syrian people, who took to the streets for an awakening and to change the tyrannic rule."
