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...

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...

The encounter with insurgency violence in Iraq and Afghanistan has pressed the US Department of Defense to improve the US military's ability to conduct counterinsurgency. It has been argued that this shift may constitute a turning point in the history of the US military, which until now has...

This paper shows that cross country differences in the generosity and the quality of the welfare state are associated with differences in the trustworthiness of their citizens. We show that generous, transparent and efficient welfare states in Scandinavian countries are based on the civicness of...

Social experiments are powerful sources of information about the effectiveness of interventions. In practice, initial randomization plans are almost always compromised. Multiple hypotheses are frequently tested. Significant effects are often reported with p-values that do not account for...

While the world's attention is focused on Russia's war against Ukraine and the intensifying conflict between the US and China, the security situation on the Korean Peninsula has continued to deteriorate. North Korea is steadily advancing the expansion of its military capabilities and recently...

President Vladimir Putin escalated Russia's war on Ukraine in September 2022, announcing a partial mobilisation and repeating his threat to use nuclear weapons. But what really ended efforts to bring about peace - which had continued since the 24 February invasion - was the proclaimed annexation...