Portugal considers adding active protection systems to tanks 12 March 2021 by Victor Barreira The Portuguese Army is considering adding an active protection system (APS) to its Krauss-Maffei Wegmann (KMW) Leopard 2A6 main battle tanks (MBTs), providing the tank with 360° detection, tracking, and interception of incoming anti-tank munitions. This possibility is being studied and discussed and could eventually become part of the planned mid-life upgrade (MLU) of the fleet, Major Ricardo Jorge Parcelas Araújo e Silva, an area coordinator at the Forces Planning Division, told Janes .