Russian drone strikes on Black Sea merchant ships are creeping toward NATO shores, the Guardian reports, with six ships hit in just 10 days. Analysts warn that escalation near Bulgaria and Romania could push NATO toward Article 4 consultations.

Russian drone strikes on Black Sea merchant ships are creeping toward NATO shores, the Guardian reports, with six ships hit in just 10 days. Analysts warn that escalation near Bulgaria and Romania could push NATO toward Article 4 consultations.