The document discusses the Indian Marine Commandos or MARCOS, an elite special forces unit of the Indian Navy. It details the history and formation of MARCOS, from its origins in 1971 to becoming an official unit in 1987. It describes MARCOS' selection process and training, which has an attrition rate of around 98% and includes collaboration with US Navy SEALs and British SAS. The duties of MARCOS include conducting special operations such as anti-piracy and counter-terrorism. Examples of MARCOS operations discussed are the Kargil War and rescuing citizens during the Yemen-Saudi Arabia war.