HMS Ocean is an amphibious assault ship, the Royal Navy’s sole Landing Platform Helicopter and the fleet flagship of the Royal Navy. She is designed to support amphibious landing operations and to support the staff of Commander UK Amphibious Force and Commander UK Landing Force. Footage includes Royal Marines Commandos conducting beach assault from the ship in the Baltic Sea during NATO exercise Baltops 2016. (Learn more: en.wikipedia.org/wiki/HMS_Ocean_(L12))