Okay, near the end,
during Colonel Jessup's testimony...the two Airmen named Rodriguez and O'Malley...they weren't actually going to testify, were they. Kaffee just had them be present in the courtroom, and wanted Jessup to see them, and get nervous, thinking they were going to testify, and expose his lies?
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(Nods) Thank you. That's what I thought.
Because actually, there WAS an earlier flight. And Jessup knew it. And so did Kaffee. He (Jessup) just recorded in the log book so that it looked like there wasn't. Kaffee just wanted Jessup to see those two guys there in the courtroom, sitting in the spectators section, and make him think they were there to testify, exposing his lie about the flight, exposing his interference in a murder investigation, thus revealing him as the one trying to obstruct justice...so he (Jessup) would get nervous, and feel forced to abandon his "deny" strategy, and switch to using the "You need me on that wall" speech, not realizing thus again, it would lead to his inadvertently revealing he ordered the code red after all...walking right into Kaffee's trap. Kaffee had anticipated all of this. Because if Jessup was innocent, then he wouldn't have reacted to the presence of the two Airmen. If they really were going to testify, they wouldn't have been allowed into the courtroom until it was their turn to do so (for that reason, so they wouldn't influence Colonel Jessup's testimony). But Jessup didn't know that.