Six world power have never been so close to a deal with Iran that would resolve the decade-long nuclear standoff once and for all, but the final phase of the negotiations will be the hardest, Germany's foreign minister said on Thursday.
For decades the opposing poles of Middle East power politics, Saudi Arabia and Iran may be driven to set aside at least some of their differences by the rise of a mutual enemy: Islamic State.
World leaders gather in New York this week to tackle a host of crises: the violence Islamic State militants are wreaking in Iraq and Syria, the exponential spread of the deadly Ebola virus in Africa and deadlocked negotiations on Iran's nuclear program.
Iran is ready to work with the United States and its allies to stop Islamic State militants, but would like to see more flexibility on Iran's uranium enrichment program, senior Iranian officials told Reuters.
