Los Zetas is a notorious criminal organization in Mexico, originally formed by former elite soldiers. They began as the armed wing of the Gulf Cartel but later became an independent group involved in drug trafficking, extortion, and violent crime. Their military training allows them to operate with a level of discipline and strategy that sets them apart from other gangs. The group is known for its brutal tactics, including kidnappings and murders, which instill fear in communities and rival organizations. Over the years, Los Zetas has expanded its influence beyond Mexico, impacting the United States and other countries through drug distribution and organized crime.