The UK Royal Navy's Albion-class assault ship HMS Bulwark is practising amphibious landings with the support of helicopters from HMS Ocean and elements of the Royal Marines.
Being conducted in Cornwall, the latest exercise aims to demonstrate the amphibious capabilities of the Royal Navy.
Amphibious Task Group commodore Martin Connell ADC said: "This demonstration today shows the flexibility and ability of the Joint Expeditionary Force to project itself anywhere in the world at a time of the governments choosing.
"We are able to provide a range of options from large-scale humanitarian support to high-intensity war fighting."
The elements participating in the training form part of the Joint Expeditionary Force (Maritime), which is the UK's very high-readiness task force.
The latest development is part of Cougar 15, a long-planned annual deployment that demonstrates the Royal Navy's ability to keep Britain safe.
Cougar 15 includes a series of exercises with UK's alliance and other partner nations in the Atlantic and Mediterranean.
In addition, the deployment will see the conclusion of Nato's flagship Trident Juncture exercise, which will include over 36,000 personal from more than 30 nations.
Recently, the Royal Navy's two frigates, HMS Iron Duke and HMS Somerset, demonstrated their firepower capability with firings in the English Channel and Cape Wrath, Scotland, respectively.
HMS Iron Duke operated its five different weapon systems, including general purpose machine guns (GPMGs), the Minigun, 30mm Cannon, 4.5in medium-range gun and the seawolf missile system.
HMS Somerset fired new infra-red illumination rounds that are designed to light up the battlefield.
Image: The Royal Navy elements landed ashore via landing craft and helicopter at Tregantle fort in a demonstration of capability. Photo: courtesy of Royal Navy.