Class. After the end of the campaign, Galland claimed to be suffering from rheumatism and therefore unfit for flying in open-cockpit aircraft, such as the Hs 123. He tactfully suggested a transfer to a single-engine aircraft type with a closed cockpit would improve his condition. His request was accepted on medical grounds. Galland was removed from his post as a direct ground support pilot. Galland never explained whether open cockpits had caused the complaint or some other cause; given his performance with eye specialists, a certain amount of suspicion is reasonable. He was transferred to Jagdgeschwader 27 (JG 27—Fighter Wing 27) on 10 February 1940 as the adjutant, restricting him from flying. Western Europe After his transfer to JG 27, Galland met Mölders again. Due to his injuries, Galland could never match Mölders' sharp eyesight; the shards of glass in his eyes denied him that capacity. However, Mölders, by that time a recognised ace shared what experiences he could with Galland; leadership in the air, tactics and organisation. Mölders was Geschwaderkommodore of Jagdgeschwader 53 at the time of their meeting. For Galland to gain experience on the Bf 109E, which he lacked, Mölders offered him the chance to join his unit. Galland learned Mölders' tactics, such as using spotter aircraft to indicate the position of enemy formation. Galland learned to allow a Staffel to operate freely in order to seize the initiative. Taking his experiences back to JG 27, its commander Max Ibel, agreed to their implementation. Galland gained further experience as a combat leader acting as Gruppenkommandeur, when the officer commanding went on leave. On 10 May 1940, the Wehrmacht invaded the Low Countries and France under the codename Fall Gelb. JG 27 supported German forces in the Battle for Belgium. On the third day of the offensive, 12 May 1940, west of Liège, Belgium, at a height of about , flying a Messerschmitt Bf 109, Galland, with Gustav Rödel as his wingman, claimed his first aerial victories, over two Royal Air Force (RAF) Hawker Hurricanes. Both aircraft were from No. 87 Squadron. The Hurricanes had been escorting Bristol Blenheim bombers to bomb bridges in the Netherlands. Galland remembered; "My first kill was child's play. An excellent weapon and luck had been on my side. To be successful, the best fighter pilot needs both"— Galland pursued one of the "scattering" Hurricanes and shot down another at low level. The