A man purported to be the reclusive leader of the militant Islamic State Abu Bakr al-Baghdadi making what would be his first public appearance at a mosque in the centre of Iraq’s second city, Mosul in a video recording posted online on  July 5th.  Photograph: Reuters

When American forces raided a home near Fallujah during the turbulent 2004 offensive against the Iraqi Sunni insurgency, they got the hard-core milita(...)

US president Barack Obama. How the US moves beyond the financial sanctions imposed on 11 Russian and Ukrainian officials  is the subject of feverish debate within political circles and foreign policy confabs in Washington. Photograph: Mark Wilson/Getty Images

The biggest foreign policy crisis of the Obama presidency has deepened under the weight of Russian leader Vladimir Putin’s ignoring of US sanct(...)

Federal Reserve vice chairman Janet Yellen is sworn in as Federal Reserve chairman by Federal Reserve Board Governor Daniel Tarullo at the Federal Reserve Building today. Chairman Yellen is replacing Ben Bernanke as Federal Reserve Chairman. Photograph: Mark Wilson/Getty Images

Janet Yellen has been sworn in as chairman of the Federal Reserve, becoming the first woman to hold the position. Her term as chair of the US’ central(...)

European negotiators, hoping to cut fuel bills, are pressing their US counterparts in Washington this week on including energy exports in a transatlan(...)

By declaring last year that Dr Bashar al-Assad would cross a “red line” that could trigger a US response if he used chemical weapons, US president Barack  Obama ensured that foreign foes and allies - as well as his Republican political rivals - would view any failure to respond as a sign of presidential weakness. Photograph: Joshua Roberts/Reuters

Most Americans want no part of a US military intervention in Syria, but there is a growing sense in Washington that President Barack Obama would face (...)