During the Army's recruitment commercial, a robot knight pulls a sword from a stone, then transforms into an apache helicopter - while the sword transforms into the pilot... (Targetmaster reference?

Some good lines too when the Army recruits in the school...

Army recruiter:"What if there was a violent video game, that you could play for free... plus, it's real life and not a game at all!" (remember those interviews from Fahrenheit 911 with the tank crews?)
or when Marge is panicked when he hears Bart has enlisted and tells Homer...
Homer: "Oh, big deal. By the time Bart's 18, we're gonna control the world. (thinks) We're China, right?"
or this one (sooo true)
Bart: "Oh, even the army has Humm-Vees now!"
