Without having contacted any Germans, the 3rd Spahis Brigade was ordered to fall back to the Semois River from its forward positions in the southern Belgian Ardennes. There, the brigade would realign with the 5th DLC to its right. On the other side of the river, the 1st Panzer Division had successfully traced its way through a series of Belgian demolitions and roadblocks. The Germans fought through solid resistance from the Belgian Chasseurs Ardennais and the French mechanized cavalry, reaching Bouillon in the evening. Withdrawing before the German advance, horsemen of the 2nd Moroccan Spahis Regiment attempted a nighttime crossing of the Semois over a footbridge at Mouzaive.

The Spahis came under fire from Germans already holding the south bank of the Semois when they reached Mouzaive. A lone Spahi bearing a light machine gun dashed across the bridge and became a one-man bridgehead. The rest of his squadron made it across under his covering fire, with the loss of just five men. After that narrow escape, the Spahis pulled back to Sugny and did not try to return and drive off the Germans or blow up the bridge. The Spahis would pull back to the Meuse River and try to stop the Germans there.

Swallows of Death may be played with the 1st edition pieces and maps from 1940: Fall of France.

When a French piece in the order of battle was apparently Moroccan and was in the Division Marocaine set, that piece was used in the order of battle list. Substitute equivalent French Army pieces Moroccan pieces when the Moroccan piece is unavailable.