Operation Torch was a highly secretive military operation during World War II. The plans for the operation were kept secret in order to protect the element of surprise and ensure the success of the operation. The secrecy was necessary because Operation Torch involved an invasion of North Africa, which was heavily fortified by the German and Italian forces at the time. If the enemy had been aware of the planned invasion, they could have taken steps to defend against it and potentially hinder the success of the operation. Keeping the plans secret was therefore crucial to the success of the operation.