Junkers Ju 87 with several auxiliaries. The Polish naval units trapped in the Baltic were destroyed by Ju 87 operations. Once again, enemy air opposition was light, and the "Stukawaffe" (Stuka force) lost 31 aircraft during the campaign. Operation Weserübung began on 9 April 1940 with the invasions of Norway and Denmark. Denmark capitulated within the day; Norway continued to resist with British and French help. The campaign was not a "Blitzkrieg" of fast-moving armoured divisions supported by air power as the mountainous terrain ruled out close Panzer/Stuka cooperation. Instead, the Germans relied on paratroops transported by Junkers Ju 52s and specialised ski
Junkers J.I to the Canada Aviation and Space Museum in 1969. Additionally, one Junkers J.I fuselage exists, at the Museo Storico dell Aeronautica Militare Italiana in Vigna di Valle. This aircraft was previously exhibited at the Leonardo da Vinci Museum at Milano and was restored at the Technical Museum of Berlin between 2005 and 2010. A flyable Junkers J.I replica is under construction in Hungary. Junkers J.I The Junkers J.I (manufacturer's designation J 4) was a German "J-class" armored sesquiplane of World War I, developed for low-level ground attack, observation and Army cooperation. It is especially noteworthy as being the first all-metal