On 13 May, Paul Ludwig Ewald von Kleist's 1st Panzer Army was poised to cross the Meuse at Montherme, with Heinz Guderian's XIX Army Corps at Sedan. To support the breakthrough, "Generalleutnant" Wolfram von Richthofen's VIII. "Fliegerkorps" was transferred to "Luftflotte 3". Loerzer, supplemented by some of Richthofen's forces, supported Guderian's breakthrough at Sedan. Sperrle arranged a single, massive bombing of the defences; Loerzer did not carry out the plan, but a series of bombing operations on the Meuse front. II. "Fliegerkorps" flew 1,770 missions, Richthofen's command flew 360. The bombing played an important role in allowing the breakthrough at Sedan, while Sperrle's fighters repulsed attempts by the Allies to bomb the bridge on 14 May, following their capture. German air defences accounted for 167 bombers destroyed.