Polish security agency to investigate disappearance of Belarus’s opposition activist amid fears of foreign involvement.

NATO Secretary-General Mark Rutte refused after speaking with President Donald Trump to weigh in on a U.S. plan to end Russia ...

James Marson leads Ukraine coverage for The Wall Street Journal.

Tim Marshall analyses the limits of Vladimir Putin's global ambitions from an extract of Prisoners of Geography ...

Two Swedish Jas 39 Gripen fighter jets have completed their first close-range interception mission under NATO command, ...

NATO Naval Power Week. By Anna Matilde Bassoli. After more than a year of disrupted global trade, the Red Sea Crisis appears ...

This week CIMSEC will feature articles submitted in response to our Call for Articles on NATO Naval Power.