To get peace in Ukraine, Donald Trump must listen to what Vladimir Putin says he wants. Alternatively, Trump must pressure Putin to make hard concessions.

Subsea cables channel data and power, but they face escalating dangers, and multiple incidents in the past few months have ...

As regional tensions escalate, four NATO countries have made a controversial decision to withdraw from a key treaty.

Karina Barquet, Hans Liwång, and Torsten Linders explore how the Baltic Sea is evolving into a ‘built seascape.’ ...

The country supports some of the world’s most important satellites. But experts worry about its proximity to Russia.