"What makes the Swedes so strong?
Experience. Sweden has been operating submarines in the Baltic since 1904. None of the neighbouring countries have been as active underwater as the Swedes.
"We have regional expertise, which fills a gap, expertise that NATO doesn't have," said Submarine Flotilla Commander Fredrik Linden.
The Baltic is also a complex waterway: With lots of rivers feeding it, it has widely varying salinity levels. These change both the buoyancy of a submarine and the way sound travels under water, and it takes local knowledge to navigate successfully.
The Swedish submarine HMS Gotland lies in a port at the naval base of Karlskrona, Sweden May 25, 2023. REUTERS/Tom Little/File Photo
Sweden's submarines can stay underwater for weeks.
While submerged, conventional submarines run on battery power. Most need to resurface after a couple of days so their diesel engines can run to recharge the batteries.
But Swedish submarines have liquid oxygen stored in tanks on board to run the diesel engines underwater to recharge the batteries, so they can stay submerged for longer and reduce the risk of detection."
^^^ Putin remains a MASTER strategist . . . for NATO!