In May 1940, the Naval Academy hosted tactical games that involved the Project 69 cruiser and battleships Scharnhorst and Dunkerque. The event showed that the replacement of 305 mm guns with German 380 mm guns significantly increased the cruiser's firepower. Later, an agreement was signed with the German company Krupp, which was supposed to deliver six turrets before March 1943. The turrets were to be mounted on cruisers Kronshtadt and Sevastopol, which were planned to be lau...