A number of companies from the US and China plan to build networks of several thousand satellites each to enable access to the Internet from any point on Earth. These satellites will be stationed in low Earth orbit. If these plans are put into practice, the global Internet infrastructure will...

Plurilateral initiatives are again gaining importance in climate diplomacy as a complement to multilateral efforts – not least in view of the lack of progress in implementing the Paris Agreement and more difficult conditions in the UN process. New alliances are expected to facilitate agreement...

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 proportion of affected populations who flee violent conflict is much smaller than is widely assumed. Many decide to remain in the conflict zones. They are often referred to as stayees. Three groups can be identified. Some people stay voluntarily. Others do so involuntarily, for example...

The "One Health" approach has found its way into political processes at various levels. The reason for this is the increased occurrence of zoonoses, i.e. infectious diseases that can be reciprocally transmitted between animals and humans. One Health is located at the intersection of human,...

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...