Built by Northrop Grumman, the USS Arlington was commissioned in 2013.
Northrop Grumman is one of the largest defense contractors and political donors in the US.
Source: US Navy
It's about 684 feet long, 105 feet wide and has a maximum displacement of 25,883 tons.
Source: US Navy
Powered by four Colt-Pielstick diesel engines, San Antonio-class ships have a maximum speed of 24.2 miles per hour.
Source: US Navy
Upon entering, the well deck is to the left, which is where the ship transports marines and vehicles, such as the amphibious assault vehicle in the middle, ashore.
This is a landing craft air cushion, which brings vehicles and marines ashore. The Arlington can hold two LCACs in the well bay, or one landing craft utility ship.
The flight deck can hold two CH-53E Super Stallion helicopters or two MV-22 Ospreys or up to four CH-46 Sea Knights or SH-60 Seahawks.
The Navy also had an AH-1 Cobra attack helicopter onboard.
The Cobra is akin to the US Army's Apache attack helicopter.
You can read more about the Cobra here.
San Antonio-class LPDs are also rather heavily armed with two rolling airframe missile launchers (one of which is in the top left), two Mk 46 30 mm guns and 10 .50 caliber machines guns.
Source: US Navy