Oscar Mike to the glossary. Copy that.
An underground or heavily fortified defensive structure where soldiers hide while terrible things happen above them. A reinforced underground shelter designed for protection from artillery and airstrikes.
An identifying armband or badge worn on the upper arm to display affiliation, rank, or purpose—think ARP wardens in WWII or modern security personnel badges.
A two-masted sailing vessel with a square-rigged foremast and a fore-and-aft rigged mainmast, common in the 17th and 18th centuries. Brigantines were favored by merchant ships and sometimes privateers for their speed and maneuverability.
The direction and distance from one point to another, expressed in compass degrees and distance, which is how soldiers navigate without GPS. A compass direction measured in degrees for navigation purposes.
An earthen barrier or embankment used for military defensive positions—basically a big dirt hill that stops bullets and shrapnel.
Forcibly entering a fortified position or structure, usually with explosives or specialized equipment—basically 'we're going through that wall whether it likes it or not.'
Military tactic targeting and destroying reinforced underground facilities. The sledgehammer approach to solving structural problems.
A system that shows where your own forces are located to prevent friendly-fire incidents. It's basically GPS for your own soldiers so nobody shoots the wrong people.