The "Luftwaffe" effort over the Netherlands comprised 247 medium bombers, 147 fighters, 424 Junkers Ju 52 transports and 12 Heinkel He 59 seaplanes. The Dutch Air Force, ("Militaire Luchtvaartafdeling", ML), had a strength of 144 combat aircraft, half of which were destroyed on the first day. The remainder of the ML was dispersed and accounted for only a handful of "Luftwaffe" aircraft shot down. The ML managed 332 sorties, losing 110 aircraft. The German 18th Army captured bridges during the Battle of Rotterdam, bypassing the New Water Line from the south and penetrating Fortress Holland. A separate operation organised by the "Luftwaffe", the Battle for The Hague, failed. Airfields around (Ypenburg, Ockenburg and Valkenburg) were captured in a costly success, with many transport aircraft lost but the Dutch army re-captured the airfields by the end of the day. Ninety-six aircraft in all were lost to Dutch artillery-fire. "Luftwaffe" operations had cost 125 Ju 52s destroyed and 47 damaged, a 50 per cent loss. The airborne operation also cost 50 per cent of the German paratroopers: 4,000 men, including 20 per cent of its NCOs and 42 per cent of its officers; of these casualties, 1,200 were made prisoners of war and evacuated to Britain.