Germany paying heavy economic price
A visiting professor of international economics, who had lectured in Beijing and Moscow, gave a reason for the panic in the headlong drive to integrate the German and French currencies and the formulation of an integrated European state — it was what the Soviet Union had secretly put on the table to Germany.
Massive gas and oil reserves lay dormant in bankrupt Russia. They needed money and the engineering technology to get this priceless energy to market. Germany had the money and the technology and were desperately seeking an independent energy source — Russia would provide it, together with closer economic ties with Germany. As an extra emotive incentive the Russians would not object to an united Germany.