It had never countenanced nuclear deterrence as a permanent measure, since deterrence was responsible for the development of ever newer nuclear weapons and actually prevented genuine nuclear disarmament.

The Holy See had expressed its limited acceptance of nuclear deterrence during the cold war on the clear understanding that deterrence merely represented a step towards progressive nuclear disarmament.

Nuclear weapon States continued to rely on nuclear weapons in part because they had developed no alternative to nuclear deterrence.

The time had come to re examine the whole strategy of nuclear deterrence.

An alternative system of collective security must be sought from which nuclear deterrence was absent.

Nuclear weapon States should abandon the policy of nuclear deterrence based on first use of nuclear weapons and should reduce the role of nuclear weapons in their national security.

In that event, there remains the hope that mutual nuclear deterrence will promote mutual common sense. Absent a dramatic improvement in the Middle East s grim political landscape, the failure of deterrence would bring the sum of all the fears of our nuclear age upon us.

The doctrine of a nuclear pre emptive strike is openly preached to render nuclear deterrence obsolete, and the development of new types of nuclear weapons and their qualitative improvement are rapidly being pursued.

It was none other than the United States that pursued us and pushed us systematically to acquire today's physical nuclear deterrence.

While nuclear deterrence is meant to prevent nuclear attacks between nuclear weapons States, the only country with the capability to implement such an attack in or from or within outer space would be the US.

Non nuclear weapon States were either dependent on their alliances with nuclear weapon States again under a security umbrella dependent on nuclear deterrence or felt insecure and unprotected because of the absence of such an alliance.

Some countries undertook to propagate the notion that their nuclear weapons were intended for peaceful purposes, while other countries' capacity for self defence and nuclear deterrence allegedly posed a threat to world peace.

Another option would be to bring the country s nuclear arsenal out of the basement altogether. Israel could then mimic other nuclear armed states by flexing its capacity through announcement and transparent nuclear deployment on land and sea, thereby promoting deterrence.

We can conclude that nuclear deterrence mattered in the crisis, and that the nuclear dimension certainly figured in Kennedy s thinking. But it was not the ratio of nuclear weapons that mattered so much as the fear that even a few nuclear weapons would wreak intolerable devastation.

Proliferators must know that the NATO allies are unwavering in their commitment to collective defense, including nuclear deterrence. Confronted with the spread of missile technology, and unpredictable regimes and leaders, we owe it to our populations to complement our deterrence capabilities with an effective missile defense capability.

But more must be done many States still lived under a nuclear umbrella, whether their own or that of an ally, and ways must be found to lessen and ultimately overcome their reliance on nuclear deterrence.

In order to accelerate the complete elimination of all nuclear weapons, the international community must channel its creativity and resources towards the development of an alternative system for collective security in which nuclear deterrence did not figure.

But, for a country that has had little faith in deterrence when it comes to existential nuclear threats, relying on it now would mark a new, uncomfortable bet.

All these elements, together with the new military doctrines which grant pride of place to nuclear weapons, combined with the concept of preventive war and the first use of nuclear weapons, go beyond the traditional concept of deterrence, which was the justification formerly invoked by the nuclear Powers.

If we connive in or tolerate the gangster like logic that only big countries can possess nuclear weapons in order to threaten or attack small countries, then essential changes will take place in the international order that will surely push non nuclear weapon States towards acquiring nuclear deterrence.

Some argue that it could become the basis of stable nuclear deterrence in the region, analogous to the nuclear standoff between the United States and the Soviet Union during the Cold War. But statements by Iranian leaders denying the Holocaust and urging the destruction of Israel have not only cost Iran support in Europe, but are unlikely to make Israel willing to gamble its existence on the prospect of stable deterrence.

Japan officially endorses the objective of a non nuclear world, but it relies on America s extended nuclear deterrent, and wants to avoid being subject to nuclear blackmail from North Korea (or China). The Japanese fear that the credibility of American extended deterrence will be weakened if the US decreases its nuclear forces to parity with China.

We could not but take the road of nuclear deterrence, because of the nuclear threats of the United States, which are based on its policy of deep rooted hostility towards the Democratic People's Republic of Korea for the past half a century.

The relationship among the variables in cyber deterrence is a dynamic one that will be affected by technology and learning, with innovation occurring at a faster pace than was true of nuclear weapons. For example, better attribution forensics may enhance the role of punishment and better defenses through encryption may increase deterrence by denial.

However, in the case of Kashmir, the asymmetric conflict currently fought by proxies and terrorist groups might not degenerate into all out war precisely because India and Pakistan have mutual nuclear deterrence.

US pledges to defend Japan against a nuclear attack from China or North Korea have played a decisive role in dissuading the Japanese from seeking their own nuclear weapons. Given this, a Chinese nuclear surge even one that did not lead to US China parity could undermine the credibility of American deterrence commitments, possibly motivating Japan to launch its own nuclear program.

McNamara s turnabout on this issue was dramatic. More than any other government official, he was responsible for institutionalizing the key strategic doctrine of the nuclear age, deterrence, otherwise known as mutual assured destruction.

Those assets are vital for our strategic deterrence posture.

Trailing her in opinion polls, the other contenders cite her lack of credibility on economic policy and international relations. No one knows her opinion on the Middle East, terrorism, nuclear deterrence, and international security.

When the concept of nuclear deterrence was brought in the discussion with reference to its potential applicability to outer space, it was strongly asserted that there is no ground to make such a comparison.

Now, one way of dealing with this problem is by deterrence.

The concept of deterrence' in reference to security in outer space.

Progress toward achieving a safer and saner world requires all of the nuclear armed states to break out of their Cold War mindset, rethink the strategic utility of nuclear deterrence in current conditions, and recalibrate the huge risks implied by retaining their arsenals. It is time for them to recognize that in today s world, nuclear weapons are the problem, not the solution.

On the contrary, they believe that, while the likelihood of a nuclear war has fallen sharply since the end of the Cold War, nuclear deterrence has become more valuable for Russia and other countries that are outmatched by America s conventional military power. This might prove to be an insurmountable obstacle to realizing the Obama administration s vision of a nuclear weapons free world.

In the spring of 2009, speaking in Prague, Obama advanced a bold ambition a world without nuclear weapons. But his audacity confronted a world in which the Bomb remained at the heart of many countries deterrence strategies.

Moreover, analysts should not limit themselves to the classic instruments of punishment and denial as they assess cyber deterrence. Attention should also be paid to deterrence by economic entanglement and by norms.

The current negotiations are likely to fail, and even tightened sanctions may not stop Iran from trying to build nuclear weapons. With the US and Israel unwilling to accept containment of a nuclear Iran by deterrence, a military confrontation in 2013 would lead to a massive oil price spike and global recession.

This deterrence logic produces a snowball effect. With Russia and the US holding 18,000 of the world s current stockpile of 19,000 nuclear weapons, it is proving impossible to persuade any of the other nuclear armed states to reduce their own (much smaller) arsenals until the Big Two make further drastic cuts to theirs.

So long as the world remains a dangerous place with several nuclear weapons states, Obama must reassure its allies about the credibility of American guarantees of extended deterrence. Otherwise, reductions that create anxieties in other countries could lead them to develop their own weapons and thus increase the number of nuclear weapons states.

The truth is that none of the nuclear armed states, inside or outside the NPT, pays anything more than lip service to the ultimate elimination of nuclear weapons. The continued seductive power of the Cold War logic and language of nuclear deterrence is the primary reason, though for some states it is clear that the testosterone factor perceived status and prestige also plays a role.

To maintain deterrence and defend Israel and its citizens from cross border attacks

And indeed the news which had a lot of deterrence, came to them.

And indeed the news which had a lot of deterrence, came to them.

The third analogy is reflected in Israeli Prime Minister Ehud Olmert s recent references to Israel s nuclear deterrent, which may have been a mistake, but probably indicate the evolution of Israeli strategic thinking. Olmert seemed to be reminding the Iranians of the hard realities of nuclear deterrence Iran may join the nuclear club someday, but it will return to the Stone Age if it uses those weapons against a country that has a far more advanced nuclear arsenal.

Israel s official policy is that of a Middle East Free of Weapons of Mass Destruction. By abandoning ambiguity and taking its own bomb out of the basement, Israel might be able to affirm its capacity for nuclear deterrence more convincingly, and, more importantly, enhance a serious debate about the urgency of a nuclear free zone in the Middle East.