Donald Trump  announces his candidacy for the US presidency at Trump Tower  in New York City. Mr Trump is the 12th Republican who has announced running for the White House. Photograph: Christopher Gregory/Getty Images

Canadian rock veteran Neil Young has continued a American tradition of recording artists asking Republican candidates to stop playing their music afte(...)

Almost three weeks after President Barack Obama said the US was not losing to Sunni extremists in Iraq his administration is sending a further 450 (...)

Online footage has shown the Chinese building, on the Fiery Cross Reef in the area, what looks like an airstrip and facilities, which the US navy calls the “Great Wall of Sand”. Photograph: United States Navy via the New York Times

China’s island-building efforts in the South China Sea have got its neighbours rattled and ratcheted up tensions in the region, but a top admiral said(...)

The National Security Agency (NSA) headquarters at Fort Meade, Maryland. Key provisions of the US Patriot Act expired early on Monday after the Senate failed to prevent their lapse, plunging US national security efforts into potential disarray as the country faces persistent extremist threats. Photograph: AFP 1:10

The US government’s authority to collect telephone records in bulk under legislation introduced after the September 11th, 2001 attacks lapsed at midni(...)

Chinese dredging vessels are purportedly seen in the waters around Mischief Reef in the disputed Spratly Islands in the South China Sea. Photograph: Reuters/US Navy

The United States said on Friday that China had placed mobile artillery weapons systems on a reclaimed island in the disputed South China Sea, a devel(...)

Displaced Sunni people fleeing the violence in Ramadi on the outskirts of Baghdad. Iraqi forces recaptured territory from advancing IS militants near the recently-fallen city of Ramadi on Sunday. Photograph: Reuters/Stringer

Rival powers and allies have traded barbs and accusations over the recent successes of Islamic State, a week after the militant group seized Ramadi (...)

Lindsey Graham, a three-term senator from South Carolina, cited the increasing violence in the Middle East as motivation for his decision to run. Photograph: Win McNamee/Getty Images

Senator Lindsey Graham, a foreign policy hawk, has become the latest Republican to join the party’s fast-growing field of presidential candidates. Mr (...)

Bruce Schneier, chief security officer at Resilient Bruce Schneier, chief security officer at security company Resilient, says the Sony attack, believed to be carried out by North Korea, exposed many of the major risks related to hacking.

Last year’s massive cyberattack on Sony – presumed to have been a nation state attack orchestrated by North Korea – presents many of the most pressing(...)

Hillary Clinton meets and greets supporters after a discussion at Whitney Brothers in Keene, New Hampshire, on Monday. New Hampshire will be the first to hold a presidential primary. Photograph: The New York Times

The event is beautifully staged: the owner of the business and six employees sit around as Hillary Rodham Clinton fields questions and shares her view(...)

 Russian president Vladimir Putin speaks with Fifa president Sepp Blatter  during their meeting at the Olympic Park in Sochi on Monday. Photo: Alexei Druginyn/EPA

With just over three years to go until Russia hosts the World Cup, western sanctions and the weakened rouble are taking their toll on preparations, as(...)