The term 'Lethal Viper' is a combination of two words, ASP and COBRA. ASP stands for 'Armed Services Police', which is a branch of the United States military responsible for providing security and law enforcement services on military installations. COBRA stands for 'Commonwealth of British Railways Authority', which is a British government agency responsible for the regulation of the railway industry in the United Kingdom. Together, these two words form the term 'Lethal Viper', which is used to describe a highly trained and experienced security force.