In Capoeira, an Armada is a basic move that consists in kicking your opponent with a spinning kick. The leg that is positioned behind in the Ginga is the leg used to hit your opponent. You shift your body to the side that your body will spin, turn in your a 180 degrees move (from the shifted position, what corresponds to a 270 degrees spin in the Ginga initial position), then, with the force from the turn, your leg will swing off and then get back to the Ginga position.