The Royal Air Force's newest anti-submarine aircraft has taken part in a multi-national exercise for the first time.
Ships, submarines and aircraft took part in the exercise which focused on anti-submarine warfare and anti-surface warfare.
Officer Commanding 120 Squadron, Wing Commander James Hanson, said: "The exercise offers my crews a great opportunity to be tested against highly professional opposition in the exercise environment.
"I know that the crews have relished the chance to show what they can do with our extremely capable aircraft."
The maritime patrol aircraft is equipped with sensors and weapons systems designed for submarine hunting.
It can also carry out surveillance, as well as search and rescue missions, according to the RAF.
During Dynamic Mongoose, the aircraft practised hunting submarines in a 200-by-200 square nautical mile area.
The Poseidon also worked alongside allied aircraft and ships during the exercise, as well as launching simulated attacks, the RAF said in a statement.
Royal Navy ships HMS Kent and HMS Westminster were also involved in the exercise.
The RAF has committed to purchasing nine P-8A Poseidons, costing £3 billion in total.
So far, the Air Force has received two of the aircraft.
The two jets are currently based at Kinloss Barracks but will move to RAF Lossiemouth once the base's £460 million upgrade is completed later this year.
Cover image: Library image of a P-8A Poseidon at Kinloss Barracks (Picture: MOD).