On 5 June, the eve of the Normandy Campaign, "Luftflotte" 3 contained 600 aircraft of all types. It was expected that "Luftflotte Reich" would send forces to France. German meteorological reports misread the weather so that the invasion caught the command by surprise. Of his total strength, only 115 single-engine fighters were operational with 37 twin-engine fighters, 137 bombers, 93 anti-shipping aircraft, 48 ground-attack and 53 reconnaissance aircraft. Only 56 night fighters were combat ready in France. Sperrle's anti-shipping force, "Fliegerkorps" X, consisted of only 137 conventional bombers, a force totally inadequate to counter Allied naval forces. However, on 23 May 1944, Sperrle had 349 heavy and 407 Flak batteries at his disposal.