His speech on the Islamic State represents a critical moment for US president Barack Obama. Photograph: Chris Ratcliffe/Bloomberg.

In January, United States president Barack Obama dismissed the possibility of militant Islamic fighters in Iraq striking the US, saying their capacity(...)

Al-Qaeda leader Ayman al Zawahri announces the formation of an Indian branch of his militant group yesterday. Photograph: Reuters

Al-Qaeda leader Ayman al-Zawahiri has launched a new branch of his global Islamist extremist movement on the Indian subcontinent to wage jihad in a(...)

US president Barack Obama addresses the nation from the State Dining Room of the White House, in Washington yesterday.  Photograph: Mike Theiler/EPA

The US military conducted two additional air strikes against Islamic State forces near the city of Arbil in northern Iraq this evening, the Pentagon s(...)

The $8.9 billion fine imposed on French bank BNP Paribas for violating sanctions against Sudan and other countries was unprecedented, but investors(...)

Self-elevated: Abu Bakr al-Baghdadi. Photograph: AP Photo/Iraqi InteriorMinistry

He’s considered the new Osama bin Laden, the most prominent leader of Sunni Muslim Salafists and jihadis. In recent weeks, Abu Bakr al-Baghdadi stu(...)

Boko Haram leader Abubakar Shekau speaks at an unknown location in this still image taken from an undated video released by Nigerian Islamist rebel group Boko Haram. Photograph: Reuters

When Washington imposed sanctions in June 2012 on Boko Haram leader Abubakar Shekau, he dismissed it as an empty gesture.Two years later, Shekau’s sce(...)

Badge of honour: supporters of Hillary Clinton are preparing for a presidential run. Photograph: Astrid Riecken/MCT via Getty

Hillary Clinton insists that she has yet to decide if she’ll run for the presidency in 2016 but her campaign has been hard at work for months, raising(...)

Iranian president Hassan Rouhani said the Islamic Republic “will not tolerate this violence and terrorism . . . we will fight and battle violence and extremism and terrorism in the region and the world”. Photograph: Umit Bektas/Reuters

Iran has reportedly intervened in the Iraq conflict, deploying a branch of the Revolutionary Guards to bolster Iraqi government troops who have bee(...)

Isis commander Abu Bakr al-Baghdadi, shown in a US state department wanted poster. Photograph: Reuters

In the scheme of prominent jihadi leaders, Abu Bakr al-Baghdadi, leader of the Islamic State of Iraq in Syria (Isis), is among the most mysterious.(...)

 Bomb disposal experts display explosives and hand grenades which had been meant for use by Pakistani Taliban militants at Jinnah International Airport in Karachi today. Photograph: Athar Hussain/Reuters

Their backpacks stuffed with food and ammunition, a squad of highly trained Taliban fighters last night attacked Pakistan’s biggest airport in what t(...)