On 5 May Walther Koch met Generals Richthofen, VIII Flieger Korps, and Kesselring, Luftflotte 2 (who had replaced Felmy). Again the discussion revolved around the coordination between ground and airborne troops. It was agreed that for the attack all Luftflotte 2 aircraft would be under the overall command of Kesselring.

The transportation of the paratroopers was the task of KG zbV1 commanded by General Morzik. Besides the forty-two Ju 52 tugs of Staffel 17/KG zbV5, which were split into four groups, there would be four reserve machines standing by. Another six would carry the paratroopers scheduled to jump once the attack on the bridges had begun. On 26 April the composition of the various staffel that would be used to tow the gliders was announced.

From Cologne Ostheim:

• Staffel 1, Granit (Eben Emael), 11 Ju 52s commanded by Lt Schweizer, deputy Lt. Jahnke.
• Staffel 2, Beton (Vroenhoven) ten Ju 52s commanded by Lt Seide, deputy Lt. Davignon.
• Staffel 3, Stahl (Veldwezelt), nine Ju 52s, commanded by Oblt. Nevries, deputy Oberjäger Zimmermann.

From Cologne-Butzweilerhof:

• Staffel 4, Eisen (Kanne), ten Ju 52s, commanded by Oblt Steinweg, deputy Oblt Rigel
• Staffel 5, special Staffel, Group I/KG zbV with six Ju 52s for Ringler’s heavy-MG half platoon.

By reason of the addition of two new paratroop squads, Beton was given an extra Ju 52, and a further aircraft was planned for Stahl, to take off from Butzweilerhof.

Five He-111 bombers of Gr I/KG4 would take off from Butzweilerhof to drop ammunition and supplies in two flights (roughly X+45 minutes and X+160 minutes) from an altitude of between 200 and 300 meters.

It was intended that each of the assault groups attacking the bridges would receive sixteen containers of ammunition and supplies, while thirty-two containers would be dropped over the Fort Eben Emael for use by Assault Group Granit. Four Do 17 bombers and six Henschel 126 reconnaissance aircraft would protect the airspace above the paratroops. The principal unit over Belgium itself was VIII Flieger Korps commanded by General Wolfram von Richthofen. His unit specialized in supporting ground troops and consisted of three squadrons of Stukas, Henschel 123B¹³ and Me 109E. Their task would be to support the troops attacking the fortified front either side of Liège and later moving inland. Fifteen minutes after the attack began they would provide the paratroops with support from the rear. Once the paratroopers had completed their mission, the objective of von Richthofen’s aircraft would be to accompany the German advance into France.

Although everything was ready for 5 May, manouevres and training went on. On 8 May more troops joined SA Koch. Assault groups Stahl and Beton were each strengthened by the addition of another squad. The final composition of the glider-borne assault groups for the operation was now:

• Stahl (Veldwezelt bridge), one officer, 91 men.
• Beton (Vroenhovern bridge), five officers, 129 men.
• Eisen (Kanne bridge), two officers, 88 men.
• Granit (Fort Eben Emael), two officers, 83 men.

Hitler had originally set 7 May as “Day-D”. After a postponement of two days, he settled for 10 May. On 7 May, three convoys of road transporters under Major Reeps, Oberjäger Sticken and Leutnant Krüger conveyed the gliders to the two airfiields. At 1300 hrs on 9 May 1940 Student received the expected order: “Day-D for Fall Gelb is 10 May.” At 2100 hrs the code word “Danzig” confirmed the attack order. Instructions were distributed. The attack on the West could begin.