1st Reconnaissance Battalion - Crew Tee Police/Law Enforcement It consists of approximately 1

It consists of approximately 1

It is said by US Marines to be based on the use of "Teufelshunde" by German soldiers to describe Marines fighting in World War I

Thankfully

fighting behind enemy lines

and a headquarters battery

1st Reconnaissance Battalion - Crew Tee Police/Law Enforcement It consists of approximately 11st Reconnaissance Battalion (1st Recon Bn) is a reconnaissance battalion in the United States Marine Corps. It is a stand alone battalion with no parent regiment. Instead, it falls directly under the command of the 1st Marine Division. 1st Recon Bn is located at Marine Corps Base Camp Pendleton in San Diego, California. Mottos: ""Celer, Silens, Mortalis"", ""Swift, Silent, Deadly"" Nickname: Black Diamond Companies: Headquarters and Service Company