German interwar training extended beyond the Soviet Union

Did training in the Soviet Union give the German Army and Air Force a special interwar advantage?

It was one part of a wider network. German personnel also trained and exercised elsewhere, most famously in Spain.

German military training between the wars extended beyond cooperation with the Soviet Union. Spain and the Soviet Union are the best-known venues, but German Army and Air Force personnel also exercised and traveled elsewhere. The Soviet connection was one part of a wider external training network during German rearmament.