By 1939 soviet russia, owing to the accomplishments of the first, second, and third five-year plans, ranked third among the world's industrial nations behind:

USA and Germany

Explanation:

The First, Second, and Third Five-Year Plans were a series of centralized international projects for the USSR economy. They were institutionalized under the mandate of Stalin who took full control of agricultural and industrial activity. There were implemented from 1928 to 1941, the year they were interrupted due to World War II. It helped the rapid development of the industry and especially the heavy industry.

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