While a second Trump Presidency would be challenging for transatlantic ties, US nuclear assurances to its NATO allies in Europe would likely be the last casualty - not the first - of a fraying relationship. There is an intrinsic incompatibility between the United States completely abandoning its...

While heated debates in Europe have focused on how to respond if Donald J. Trump is re-elected to the White House, discussions in Australia, Japan, and South Korea reveal a greater sense of confidence in Washington's commitments. The fear that the United States would withdraw its nuclear...

At least since Russia deployed North Korean artillery and ballistic missiles against Ukraine, it is obvious that Pyongyang fuels conflicts far beyond North-East Asia. Yet, the indirect threats that North Korea poses to Europe's security and stability have developed a new quality: Pyongyang is...

A close reading of Russia's nuclear statements and actions during the first seven months of its war against Ukraine reveals a threefold approach. Moscow is walking a fine line between a well-crafted and successful deterrence strategy to prevent foreign military intervention; a more modest and...

Originally scheduled for 2020, the 10th Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) had to be deferred four times. It was not until August 2022 that the 191 NPT states finally met. At least since Russia's invasion of Ukraine, observers had expected that the...

Replacing the US nuclear guarantee with a French nuclear umbrella for Europe would face major political and logistical challenges. Nevertheless, given the growing uncertainty in Europe and Asia, the German government should consider scenarios and options that go beyond today's deterrence...

US President Joe Biden is considering a change to US nuclear declaratory policy. Ever since the beginning of the nuclear age, Washington has stated that it could retaliate with a nuclear response to both nuclear and non-nuclear attacks. This declaratory policy may soon be restricted: President...

Any conflict with a nuclear power like Russia carries the risk that nuclear weapons could be used, and President Vladimir Putin is aggressively exploiting such concerns. With its nuclear threats, the Kremlin is moving away from Russia's doctrine that ascribes a protective role to its nuclear...