Russian president Vladimir Putin. In interviews on Monday, French president Francois Hollande said he was “still asking himself” whether he should receive Mr Putin. “Is it useful? Is it necessary?” he said. Photograph: Ozan Kose/AFP/Getty Images

Russian president Vladimir Putin has cancelled his visit to Paris next week, as relations deterioriated further over what France calls “war crimes” co(...)

US president Barack Obama told a press conference in Paris that he does not expect his Russian counterpart, Vladimir Putin, to begin targeting Islamic State (ISIS) soon. Photograph: Pascal Le Segretain/Getty Images

US president Barack Obama told a press conference in Paris that he does not expect his Russian counterpart, Vladimir Putin, to begin targeting Islamic(...)

A Kurdish Peshmerga fighter launches mortar shells towards Zummar, controlled by Islamic State, near Mosul in Iraq yesterday. Reuters/Ahmed Jadallah

Twenty-six countries, including the five permanent members of the UN Security Council and 10 Arab states, as well as representatives of the Arab Leagu(...)