 As part of a combined @-@ force operation , the German Air Force ( Luftwaffe ) would contribute Ju 88As , Stukas , Messerschmitts , three light AA battalions , and three heavy AA battalions . Nazi Germany 's Kriegsmarine would cooperate by using U @-@ boats to interfere with British naval movement and emplacing coastal batteries to further discourage the Royal Navy . 
 As part of a combined @-@ force operation , the German Air Force ( Luftwaffe ) would contribute Ju 88As , Stukas , Messerschmitts , three light AA battalions , and three heavy AA battalions . Nazi Germany <a href='null_genetive' title='1'><mark>'s</mark></a>Kriegsmarine would cooperate by using U @-@ boats to interfere with British naval movement and emplacing coastal batteries to further discourage the Royal Navy . 
As part of a combined @-@ force operation , the German Air Force ( Luftwaffe ) would contribute Ju 88As , Stukas , Messerschmitts , three light AA battalions , and three heavy AA battalions . Nazi Germany  Kriegsmarine would cooperate by usin U @-@ boats to interfere wit British naval movement and emplacing coastal batteries to further discourage the Royal Navy .