Naval Special Warfare, also know as DEVGRU is divided into color-coded line squadrons: Red Squadron (Assault) Gold Squadron (Assault) Blue Squadron (Assault) Silver Squadron (Assault) Black Squadron (Intelligence, Reconnaissance, & Surveillance) Gray Squadron (Mobility Teams, Transportation/Divers) Green Team (Selection/Training)
Each assault squadron is divided into three troops and these troops are divided into smaller teams of SEALs, often called assaulters. Each assault squadron also has a specific nickname. Examples include Gold Squadron's Knights, Red Squadron's Indians, Blue Squadron's Pirates, Gray Squadron's Vikings, etc.
These patches are the most realistic replica of these insignia!