South Yemenis stand on a tank used by militiamen loyal to the Saudi-backed Yemeni president, Abed Rabbo Mansour Hadi, following clashes with Houthi fighters in the  port city of Aden on Wednesday. Photograph: EPA

As the US expedited arms deliveries to the Saudi-led coalition, the UN warned the situation in Yemen could become “catastrophic”. Trond Jensen, head o(...)

 Palestinian families  at a makeshift centre in Damascus, Syria, after being evacuated from Yarmouk camp in southern Damascus. Photograph: EPA/SANA

The UN agency for refugees has made an urgent plea for humanitarian access to the Damascus suburb of Yarmouk, which was invaded last week by Islamic S(...)

Fighters from a coalition of Islamist forces walk  in the Syrian city of Idlib, the second provincial capital to fall from government control. Photograph:  Zein Al-Rifai/AFP/Getty Images

There are more than 25,000 foreign fighters from 100 countries taking part in conflicts in Syria and Iraq, Yemen, Somalia, and Libya – an increase of(...)

EU high representative for foreign affairs and security policy Federica Mogherini and Iranian foreign minister Mohammad Javad Zarif, in Lausanne, Switzerland. Photograph: Jean-Christophe Bott/EPA

The breakthrough in negotiations between Iran and the five permanent Security Council members plus Germany, could enable Iran to reach political and e(...)

A member of the Iraqi security forces stands inside a damaged house in the southern entrance of the city of Tikrit on Sunday. Photograph:  Ahmad al-Rubaye/Getty Images

The decision by Iraqi prime minister Haidar al-Abadi to request US air strikes against Islamic State (IS) fighters entrenched at the heart of the stra(...)

 Yemenis gather beside a burning vehicle allegedly belonged to Houthi fighters following clashes with tribal militiamen loyal to Yemeni president Abdo Rabbo Mansour Hadi.

Sunni Saudi Arabia’s “Operation Defensive Storm” against Shia Houthi tribesmen in Yemen could become the kingdom’s first full-scale military campaign (...)

Crac des Chevaliers, an 11th century crusader castle in Syria which has been reclaimed by the country’s department of antiquities, having been seized by insurgents in 2012. Photograph: Getty Images/iStockphoto

Syria’s department of antiquities has reclaimed the vast 11th- century crusader castle Crac des Chevaliers from the army and taken charge of the si(...)

Children playing at a makeshift settlement for Syrian refugees in Bar Elias, in the Bekaa valley. The Britain-based Syrian Observatory for Human Rights said more than 215,000 people have been killed since the start of the crisis in 2011, about  half of them civilians. Photograph: Jamal Saidi/Reuters

The four-year-old Syrian conflict has precipitated the world’s largest humanitarian crisis since the second World War. An estimated 200,000-220,000 ha(...)

Bakdash, a modest shop planted in the centre of 18th-century Souq al-Hamidiya in Damascus, is mobbed from morning to night

Four years of warfare, destruction, displacement and sanctions have shattered the Syrian economy. Its currency value has fallen dramatically from 55-6(...)

Syrian opposition leader Khaled Khoja speaks after a meeting in Paris earlier this month. Photograph: Guillaume Horcajuelo/EPA

Since unrest erupted in Syria in mid-March 2011, opposition figures and factions have multiplied and mutated on the political level, making common act(...)