The beach-storming scenes that open the finale of The Last Ship were filmed in the Red Beach training area and in Red Beach Combat Town, Marine Corps Base Camp Pendleton, in Southern California.
When the combat reporter asked "should we retreat" the marine replies with "Retreat? Hell we just got here!" This is based on the motto of the 2nd Marine Division 5th Regiment (Retreat, Hell). During World War 1 a marine officer was ordered to retreat And he replied with "Retreat? Hell we just got here!"
The titles of the last three episodes of the series Honor (2018), Courage (2018), Commitment (2018), are the core values of the United States Navy.