In dealing with those nations that break rules and laws, I believe that we must develop alternatives to violence that are tough enough to change behavior – for if we want a lasting peace, then the words of the international community must mean something. Those regimes that break the rules must be held accountable. Sanctions must exact a real price. Intransigence must be met with increased pressure – and such pressure exists only when the world stands together as one. One urgent example is the effort to prevent the spread of nuclear weapons, and to seek a world without them … It is also incumbent upon all of us to insist that nations like Iran and North Korea do not game the system. Those who claim to respect international law cannot avert their eyes when those laws are flouted. Those who care for their own security cannot ignore the danger of an arms race in the Middle East or East Asia. Those who seek peace cannot stand idly by as nations arm themselves for nuclear war … I know that engagement with repressive regimes lacks the satisfying purity of indignation. But I also know that sanctions without outreach – and condemnation without discussion – can carry forward a crippling status quo. No repressive regime can move down a new path unless it has the choice of an open door. (President Barack Obama, Peace Prize Speech, Oslo 2010)