The Yacht-Club von Deutschland was further expanded by the "incorporation" ("Einverleibung") with other German yacht clubs having a royal background.
Upon the 1938 annexation of Austria ("Anschluss"), half of the Austrian yacht clubs were brought under the wing of the Yacht-Club von Deutschland.
In 1939 many of the sailing competitions and other planned events in preparation for the 1940 Helsinki Summer Olympics were carried out in Germany, especially in Kiel, despite the imminence of the war.
On September 1, participants belonging mainly to nations that had become hostile were brought safely across the border into Denmark together with their boats.
Contributors felt emboldened to deny funds to the Yacht-Club von Deutschland owing to the war-related shifting of priorities.