Bathyscaphe Trieste
Trieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe, which with its crew of two reached a record maximum depth of about , in the deepest known part of the Earth's oceans, the Challenger Deep, in the Mariana Trench near Guam in the Pacific. On 23 January 1960, Jacques Piccard (son of the boat's designer Auguste Piccard) and US Navy Lieutenant Don Walsh achieved the goal of Project Nekton.
Operation Deep Water
Operation Deep Water took place as part of a series of concurrent NATO exercises held during the fall of 1957 which were the most ambitious military undertaking for NATO to date, involving more than 250,000 men, 300 ships, and 1,500 aircraft operating from Norway to Turkey. These other 1957 exercises were Operation Strikeback, which concentrated on NATO's eastern Atlantic/northern European flank; Operation Counter Punch involving Allied Forces Central Europe on the European mainland; Operation Stand Firm in the English Channel; Operation Sea Watch, a convoy escort exercise in the North Atlantic Ocean; and Operation Fend Off/Operation Fishplay, an anti-submarine exercise in the Greenland-Iceland-UK gap ("GIUK gap").