In the aftermath of this episode, the Allies formed their own glider forces, as part of their airborne forces. Before they could see action, the Germans had made their largest airborne operation, the attack on Crete. Their glider troops and paratroops suffered heavy casualties, and the Germans decided that this mode of warfare was too costly. A subsequent plan for the invasion of Malta which called for extensive German and Italian airborne operations was cancelled. The Italian 80th La Spezia division was specially trained for airlanding operations, but never took part in any after the Maltese invasion was cancelled and it was instead deployed in the Tunisian Campaign.