Israeli prime minister Benjamin Netanyahu is to address Congress. Photograph: Chris Ratcliffe/Bloomberg

US secretary of state John Kerry has attempted to defuse tension with Israel on the eve of Benjamin Netanyahu’s address to Congress, where he will spe(...)

Israel’s Prime Minister Benjamin Netanyahu pauses while he speaks to supporters of his Likud party as he campaigns in the West Bank Jewish settlement of Maale Adumim, near Jerusale. Mr Netanyahu has rebuffed criticism in Washington of his plans to speak in Congress, accusing world powers of forsaking a pledge to prevent Tehran from acquiring nuclear weapons. Photograph: Nir Elias/Reuters

The row between the White House and Israeli prime minister Binyamin Netanyahu has intensified with US officials saying his outspoken condemnation o(...)

Susan Rice, President Obama’s national security adviser, said the US must “walk and chew gum at the same time” in dealing with immediate crises and long-term threats. Photograph: Alex Wong/Getty Images

President Barack Obama has identified Russian aggression and Islamic extremism as concerns but stresses no single threat or region would dominate A(...)

Outgoing US defence secretary Chuck Hagel: reported to have resigned under pressure from a White House eager to project more assertive responses.  Photograph: Chip Somodevilla/Getty Images

Chuck Hagel, president Barack Obama’s defence secretary, has stood down after less than two years in the job in a sign of increased unease at the W(...)

Smoke rises following an air strike by the US-led coalition aircraft in the Syrian town of Kobani, near the border with Turkey, during fighting between Syrian Kurds and Islamic State  militants  yesterday. Photograph: Gokhan Sahin/Getty Images

Fighting in Iraq’s western Anbar province has forced up to 180,000 people to flee since the city of Hit fell to Islamic State (IS) earlier this mon(...)

Medical staff working with Medecins sans Frontieres (MSF) prepare to bring food to patients kept in an isolation area at the MSF Ebola treatment centre in Kailahun, Sierra Leone. Ebola has killed 672 people in Guinea, Liberia and Sierra Leone since it was first diagnosed in February. Photograph: Tommy Trenchard/Reuters

The Nigerian city of Lagos shut and quarantined a hospital yesterday where a Liberian man died of the Ebola virus, the first recorded case of the high(...)

Volunteers who have joined the Iraqi Army to fight against  Sunni militants who have taken over Mosul and other northern provinces, travel in army trucks in Baghdad. Photograph: Thaier Al-Sudani/Reuters

The insurgent offensive that has threatened to dismember Iraq spread to the northwest of the country today, when Sunni militants launched a dawn raid (...)

Edward Snowden, a former National Security Agency (NSA) contractor, speaks to NBC News anchor Brian Williams during an NBC Exclusive interview. (NBC News)

US spy agency contractor Edward Snowden told a US television interviewer he would like to go home from asylum in Moscow, but that if necessary he wou(...)

Russian sailors stand guard yesterday on Ukranian ship Ternopol, seized by Russian troops, in Sevastopol. Photograph: Reuters/Vasily Fedosenko

Ukraine has warned of worrying Russian troop movements near its eastern border, as president Vladimir Putin s(...)

Photos of people reported to have died during clashes in Kiev at a makeshift memorial in the Little Ukraine section of the Manhattan borough of New York. Photograph: Carlo Allegri/Reuters

Fugitive Ukrainian president Viktor Yanukovich, ousted after bloody street protests in which demonstrators were shot by police snipers, is wanted f(...)