The Last Ship Casus Belli (2014–2018) Online

Episode cast overview, first billed only:
	Eric Dane	-	CO CDR Tom Chandler
	Adam Baldwin	-	XO Mike Slattery
	Bridget Regan	-	Sasha Cooper
	Charles Parnell	-	CMC Jeter
	Travis Van Winkle	-	Lt. Danny Green
	Marissa Neitling	-	Lt. Kara Foster
	Jocko Sims	-	Lt. Carlton Burk
	Kevin Michael Martin	-	Miller
	Bren Foster	-	SCPO Wolf Taylor
	Emerson Brooks	-	Capt. Joseph Meylan
	Jodie Turner-Smith	-	Sgt. Azima Kandie
	Christina Elmore	-	Lt. Alisha Granderson
	Maximiliano Hernández	-	Doc Rios (as Maximiliano Hernandez)
	Fay Masterson	-	Andrea Garnett
	Michael Curran-Dorsano	-	Gator

"Casus Belli" is a Latin phrase that literally translates to "a case of war". As an expression it is used to describe an act or event that provokes or is used to justify war. The term first became widely used in the 17th century by several popular writers when discussing the ways governments at the time tried to justify wars that were unpopular with the majority of the citizens, and often had nothing to do with the reasons the government gave as a justification.

EN1 is Engineman First Class.

MEF is short for Marine Expeditionary Force.

CIWS is short for Close-In Weapons Support, for detecting and destroying short-range incoming guided missiles and enemy aircraft which have penetrated the outer defenses. It is known as a point defense weapon ( the defense of a single object or a limited area, e.g. a ship, building or an airfield) as oppose to an area-defense systems, which have a wider range and are placed near or on the object to be protected.

Tactical Action Officers (TAO) are responsible for weapons release, sensors and overall defense of the ship in the absence of the captain.

Tavo said "We will no longer cower in fear of your big stick". It is a reference to a quote by the American President Theodore Roosevelt, which in turn is based on an African proverb "Speak softly and carry a big stick".

Panama was at one time part of Columbia until American military intervention aided in the former's secession from Gran Columbia.

The Master Chief said to the fleet "We wish you fair winds and following seas". A following sea is defined as a sea moving in the direction of a ship's heading.

ISR is short for Intelligence, Surveillance, and Reconnaissance.

SCAT is short Small Craft Action Team.

It seems that there were two Navy boats named after American Presidents from the show, namely Jeffrey Michener and Howard Oliver played by Mark Moses and John Cothran respectively. In the case of the later, it can be seen close to the end of the episode, where a sailor is playing taps on a bugle right next to the docked ship.

DISN is short for Defense Informations Systems Network.

CMC is short for Command Master Chief.

SCPO is short for Senior Chief Petty Officer.

In Naval jargon, surface refers to anything on the water, while subsurface refers to anything below water.

Zulu Actual, refers to the commanding officer of the detachment or ship.

DC is short for Damage Controlman.

Pucara, as in Pucara class attack plane, is a Quechua (Indian tribe located in the Western half of South America) word which means Fortress. The planes are manufactured in Argentina.

XO is short for Executive Officer.

Mahan Hall, where Chandler was lecturing Midshipman at the US Naval Academy was named in honor of Alfred Mahan the President Of Naval War College. Mahan, was well-known for his whitepaper "The Influence of Sea Power upon History".

The Nimitz Library found on the campus of the US Naval Academy, Annapolis, was named after Chester W Nimitz, Commander in Chief, U.S. Pacific Fleet and Commander in Chief, Pacific Ocean Areas, commanding Allied air, land, and sea forces during the Second World War. He played in major role in the surrender of Japan, which led to the conclusion of the war.

When Chandler says of the incoming aircraft "Their wings aren't clean", he is referring to the ordnance mounted under the wings. An unarmed aircraft would have "clean wings" -- no mounted bombs, missiles, or gun pods.