Fun fact: during the early part of WWII, when Germany had signed a series of economic and political pacts with the Soviet Union (and before Germany invaded the USSR, obviously), they shipped various weapons systems and other advanced military technologies to Russia as part of the deals. One of these shipments included advanced 37mm anti-aircraft guns and turrets that had originally been earmarked for installation on the Bismarck, which was instead equipped with older, less effective guns. When she made her one and only sortie in 1941, she was fatally crippled by actual biplanes.

The moral of the story is: “don’t give shit to Russia”.