Warships taking part in the UK-hosted multinational drill Joint Warrior got underway on October 1 for a fortnight of exercises off the coast of Scotland.
This is the second time this year the biannual drill is being held.
The first one took place in March and featured or incorporated Information Warrior, an event aimed at demonstrating and developing information warfare.
The fall edition of the drill will, in addition to inter-operability development and standard evolutions, feature the ballistic missile defense drill Formidable Shield.
Joint Warrior is designed and led by the Joint Tactical Exercise Planning Staff (JTEPS) in the United Kingdom.
35 ships and a number of aircraft from 14 nations are set to take part in the drill.