Jinshi data news on June 14th, on June 13th, the United States sent the "Helena" nuclear-powered fast attack submarine to the Guantanamo Bay Naval Base in Cuba. The US Southern Command issued a statement on the 13th, stating that the "Helena" submarine's docking near the Guantanamo Bay Naval Base is part of a "routine port visit" within the jurisdiction of the Southern Command and was pre-planned. The day before, on the 12th, a formation of the Russian Northern Fleet arrived at Havana, Cuba for a visit, including the "Kazan" nuclear submarine, the "Admiral Gorshkov" naval frigate, and so on.