Sea vessels
Watch: HMS Portland shows off her firepower at sea during Steadfast Defender
The Royal Navy's HMS Portland has been demonstrating her power during firing drills as part of Nato's Exercise Steadfast Defender.
The powerful Type 23 frigate is training with her Sting Ray torpedoes, firing them into the sea from her launchers and dropping them using her Merlin helicopter.
She is part of the 15-ship carrier strike group led by HMS Prince of Wales that is currently training off the coast of Norway – see what she did in the video above.