Video Assistant Referees (VAR) are officials who use video technology to assist on-field referees in making accurate decisions during a football match. They review specific incidents, such as goals, penalties, and red cards, to ensure that the correct calls are made. The VAR team consists of a lead video assistant referee and additional assistants who monitor the game from a remote location. They communicate with the on-field referee through a headset, providing information and recommendations based on video replays. This system aims to reduce errors and improve the fairness of the game.