Project Pounce is another UFO related project. Some sources consider Project Pounce to be an earlier version of Project Blue Book, though most researchers believe that Blue Book was only preceded by Sign and Grudge. They are supported in this by the official documentation that is currently available (through FOIA etc.). Then again, as Blue Book was nothing more than an overt PR exercise, it is probable that a real, yet covert, project would also have existed to investigate the UFO phenomenon.
See also: projects Gleem, Grudge and Sign.