Harrier jets launched from the USS Iwo Jima acted as enemy strike aircraft for an exercise.
HMS Anson is due to remain in Barrow for completion until 2022 before leaving for sea trials and joining her sisters in Scotland.
300 Royal Marines launched from assault ship HMS Albion.
The Royal Navy is taking part in a massive missile test off the Scottish coast.
ELLIDA is a multi-role support and logistics vessel that can transport and deliver troops, vehicles, equipment and supplies.
The Wall Street Journal has reported that "the most powerful U.K. fleet to be assembled in decades" is sailing.
Stunning images show F-35B jets and Merlin helicopters packed into the hangar of aircraft carrier HMS Queen Elizabeth.
The aircraft carrier crew are steadily developing skills handling and operating multiple aircraft at once as part of trials following a period alongside.
"The United States and United Kingdom’s forward-deployed forces remain ready to respond to crises globally as a combined maritime force."
American vehicles and equipment were delivered to Croatia by a Point class sealift vessel.