A Yemeni girl pulls the suitcase of a relative who returned to Yemen, at Sanaa’s international airport yesterday. Photograph: Mohammed Huwais/AFP/Getty Images

Yemeni president Abd-Rabbu Mansour Hadi has appointed his former prime minister as vice president, a move apparently aimed at improving the chances(...)

A perilous escalation

Yemen’s civil war is becoming a humanitarian catastrophe, a playing field for regional rivalries and a spoiler in the geopolitical detente between the(...)

An undated handout image of Iran’s Supreme Leader Ayatollah Ali Khamenei. Photograph: Office of the Iranian Supreme Leader/The New York Times.

Iran’s leader has condemned as genocide the military intervention by its main regional rival Saudi Arabia in Yemen, escalating Tehran’s rhetoric again(...)

Iran’s foreign minister Javad Zarif  after speaking during a news conference on the nuclear talks with western powers in Lausanne, Switzerland, on April 2nd. Hardliners in Iran are going out of their way to laud  Mr Zarif and his team of negotiators, as well as the government of President Hassan Rouhani. Photograph: Brendan Smialowski/New York Times

Since the Islamic Revolution in 1979, Iranian hardliners have been free to take to the streets and object to any form of compromise with the West, and(...)

A Yemeni fighter of the separatist Southern Movement, loyal to the government forces, in Aden’s northern district of Dar Saad on Tuesday. Photograph: AFP/Getty Images

The United States is accelerating arms supplies and bolstering intelligence sharing with a Saudi-led alliance bombing a militia aligned with Iran in n(...)

President Barack Obama in the Oval Office during an interview with The New York Times. Mr Obama strongly defended last week’s preliminary agreement with Iran as a “once in a lifetime opportunity”. Photograph: Todd Heisler/The New York Times

US president Barack Obama defended the nuclear agreement with Iran as a “once-in-a-lifetime opportunity” to prevent a nuclear bomb and bring longer-te(...)

Iran’s foreign minister, Mohammad Javad Zarif, greets the crowd as the nuclear negotiating committee arrives at Mehr Abad Airport in Tehran yesterday shortly after announcing the ingredients of a historic nuclear deal with world powers. Photograph: Borna Ghasemi/AFP/Getty images

Even after learning about a politically seismic event – a nuclear agreement that could augur an end to the era of sanctions and shouts of “Death to Am(...)

An important breakthrough

Although the devil is in the detail – to be finalised by June 30th – and the final few paragraphs of international agreements are often the most diffi(...)

President Hassan Rouhani has pledged that Iran will abide by its commitments in the nuclear agreement reached in Switzerland yesterday.He said Iranian(...)

US president Barack Obama has issued a video message directed at Iran’s young people, urging them to pressure their leaders to accept a nuclear deal. Photograph: Aude Guerruci/EPA.

Two weeks after US Senate Republicans issued a letter to the Iranian leadership warning that any nuclear agreement Iran signs with the administration(...)