Operational cover is like wearing a disguise when you are doing something secret or dangerous. For example, if you are a spy trying to sneak into a building, you might wear a different outfit and pretend to be someone else so that nobody knows you are a spy. This is exactly what operational cover means – pretending to be someone else to keep your true identity a secret. It is important for spies, soldiers and undercover agents to use operational cover to protect themselves and complete their missions successfully.