Here's your morning bulletin.

Donald Trump has threatened to pull out of the 2015 Iran nuclear agreement, unless it is ‘fixed’ by May 12. He would be right to follow through, according to Michael Makovsky.

Russia has forces in Syria to show the world that it is still an influence, but any losses can be attributed to ‘private operators’, says Nina L. Khrushcheva

Nightly now we see the appalling cruelty being inflicted on helpless Syrian citizens by their own government and by their Rusian and Iranian allies.

The UN Security Council has unanimously approved a resolution demanding a 30-day ceasefire across Syria "without delay" to deliver humanitarian aid to millions and evacuate the critically ill and wounded.

America’s failure to commit resources has enabled a multiplicity of players — Iran, Russia, Islamic State, Hezbollah — to muddy the bloody waters of the civil war, says Christopher R. Hill

Brian Maguire returned from Aleppo intent on painting the reality of what he’d seen in the Syrian city, writes Alan O’Riordan.

Russia's defence ministry has displayed a pair of drones that it said were captured following attacks on two Russian military bases in Syria.

Despite their difference Iran and Russia are both becoming big players in the Middle

An air strike on a Syrian village held by the Islamic State group has killed at least 25 people, all of them civilians, according to activists.

Vladimir Putin has met with Syrian president Bashar Assad in Sochi.

Rival US and Russian resolutions to extend the mandate of experts trying to determine who was responsible for chemical attacks in Syria have been defeated at a heated Security Council meeting that reflected the deteriorating relations between Washington and Moscow.

Vladimir Putin and Donald Trump have agreed to defeat the Islamic State group in Syria, the Kremlin said.

Russia and Saudi Arabia have struck a number of deals, including contracts for Russian weapons, as part of a groundbreaking first visit by a Saudi monarch.

The head of the Lebanese militant group Hezbollah said on Sunday it was time for political leaders to accept the survival of Syrian president Bashar Assad's government.

Renowned former war crimes prosecutor Carla Del Ponte is resigning from the UN's Syria panel, saying in five years it has had no success at all.

French President Emmanuel Macron said it is "obvious and indispensable" to have exchanges with US President Donald Trump as the two leaders were set to try to find common ground on security, defence and other issues.

The idea that Russia and the US work out the rules of engagement in cyberspace isn’t crazy, but the US president jumped the gun after Putin talks, writes Leonid Bershidsky

Latest: The US has seen chemical weapons activity at a Syrian air base used for a sarin gas attack in April, the Pentagon said.

The White House has issued a warning to Bashar Assad as it claimed "potential" evidence showed Syria was preparing for another chemical weapons attack.

‘Russian hackers’ are blamed for everything, the latest being breaching Qatar’s news agency, sparking a row with the Saudis. This makes no sense, says Leonid Bershidsky.

The US State Department said that it believes about 50 detainees are being hanged each day at the Saydnaya military prison

Donald Trump will meet Vladimir Putin's senior diplomat at the White House on Wednesday in a signal that US relations with Russia have improved.

A deal hammered out by Russia, Turkey and Iran to set up "de-escalation zones" in mostly opposition-held parts of Syria has gone into effect.

The downturn in the US-Russian relationship, at odds with the warmth of the US presidential election campaign, could drive Russia into China’s arms, writes Josh Cohen

Theresa May has dismissed as "hypothetical" a suggestion from Foreign Secretary Boris Johnson that it would be difficult to say No to supporting further US air strikes against Bashar Assad's regime.

In its first 100 days, the Trump White House has done better than many expected in handling some crises and the strategic signals it projects to the world, says Peter Apps

Analysis of samples taken from a deadly sarin gas attack in Syria earlier this month "bears the signature" of President Bashar Assad's government and shows it was responsible for the deadly assault, France's foreign minister has said.

The United States has issued 271 sanctions in response to Syrian president Bashar Assad's alleged use of chemical weapons.

The Britain-based Syrian Observatory for Human Rights reported that air strikes had seriously damaged the medical centre in Abdin village, in Idlib

ANY book written about the Syrian civil war can only, sadly, be a a sad book. And this book is no exception.

Israeli defence officials said this week that Syria still has up to three tons of chemical weapons in its possession.

The US, its allies and Russia could best help the Syrian people by stepping up genuine humanitarian assistance in response to the refugee crisis, coming clean about their real intentions in the wider region, ceasing arms sales and engaging in a genuine peace process, argues Jim Roche. 

America’s limited intervention won’t change the course of the Syrian war or temper Bashar al-Assad’s scorched earth policy against rebels and civilians, writes Mohamad Bazzi.

Russia has been told it must choose between aligning itself with the US and like-minded countries or embracing Syrian President Bashar Assad, Iran and militant group Hezbollah.

US Secretary of State Rex Tillerson has used a visit to a Second World War memorial in Italy to declare that the United States will stand up to aggressors who harm civilians.

While the US missile assault on Syria will make Putin and Assad pause for thought, one of the consequences of the attack may be a boost for Islamic State, writes Leonid Bershidsky.

Boris Johnson has pulled out of a visit to Moscow in the wake of the Syrian chemical weapons attack saying "we deplore Russia's continued defence of the Assad regime".

The US missile attack caused heavy damage to one of Syria's biggest and most strategic air bases - but the impact on President Bashar Assad's military capabilities is limited.

The United States has warned it is "prepared to do more" to stop the horrors that are taking place in Syria under Bashar Assad.

An Irish-Swedish woman who witnessed yesterday’s suspected terrorist attack in Stockholm has recalled her fear when she heard the impact of a truck hitting a high street store.

Politicians from around the world were quick to react on Twitter to news of the US strikes on Syria.

Evidence suggests Assad was behind this week’s chemical weapons attack. Leaders are saying it is a redline issue but Western powers are at a loss to respond, says Peter Apps

While most of the world has agreed to destroy these deadly weapons, the attack in Syria this week shows the urgency of the situation, writes Caroline Alexander