Under the slogan "Death to America", Iran has been at war with the US, Israel and their Western allies since the Islamic Revolution of 1979, using proxy groups to kill hundreds of Americans in Iraq, Afghanistan, Lebanon and other places; and to launch terror attacks across the Middle East, Europe, the US and Latin America.

Mr Fakhrizadeh was a brigadier general in the IRGC and therefore not only a senior military commander in a country at war with the US and its allies but also a proscribed international terrorist.

Iran will never abandon what it considers its absolute right to become a nuclear-armed state, not under the current regime nor any future regime.... It has lied to the IAEA and the archive even sets out in detail the ways in which it has deceived the inspectors.

Despite claims to the contrary, the JCPOA was never going to prevent a nuclear armed Iran... Its sunset clauses meant that at best the deal might have delayed Tehran's acquisition of nuclear weapons for a few years.... Any return to the JCPOA by a Biden White House, as is being pushed by Mr Brennan and other prospective administration officials, will not see a strengthened deal but more likely an even weaker one.

Mr Brennan and the European supporters of his argument seem to believe that Iran can be contained by appeasement and negotiation rather than military strength and political will. The path advocated by the proponents of appeasement can only lead to infinitely greater bloodshed, violence and suffering than the death of a proscribed terrorist on the streets of Iran.

Russia's strategy with nuclear weapons, as outlined in official documents and many analyses, leans towards what General John Hyten, the Vice Chairman of the Joint Chiefs of Staff, has referred to as "escalate to win."

Moreover, the absence of China as a party to any arms agreements, including New START, gives China a total "free ride" on nuclear issues in that there is no requirement for China to limit any of its nuclear weapons, even if the US could verify such an agreement.

Such calls for one-sided cuts to the US arsenal, particularly during a serious negotiation such as the current one with Moscow, simply undercut America's negotiating leverage.

The fact is that no matter what the US does, both Moscow and Beijing will continue to build nuclear and other high-tech weapons, including space weapons and hypersonic-capable weapons.... If these adversaries cannot compete on the conventional level, they have no choice, given their ambitions, but to go nuclear to assert themselves against the interests and values of the US and its allies, and carry out their aggressive and hegemonic designs.

Moreover, as inherently imperial autocracies, they are driven from within to states of siege, if not war, with the US, as well as imperial probes across Europe, Asia, and the Middle East.

For these reasons, the Trump Administration has correctly focused on ending China's "free riding" regarding arms control talks and on placing all of Russia's nuclear programs on the table, coupled with far better verification. Many of those opposing such a strategy apparently have forgotten that the first reason a great power such as the US engages in arms control is not altruism. Rather, and as the fathers of deterrence theory understood, arms control is an action that states undertake primarily to advance their own interests and security and that of their allies.

Thus, from a US perspective, perpetuating the status quo would hardly be a satisfactory outcome for Washington and its allies.