Active Sonar - June 2026 Canada-Korea joint naval exercise

This video shows a few snippets of the joint naval exercise earlier this month. One thing that caught my attention: although the exercise officially took place the following day, every hydrophone recording from June 3–7 is missing from the Ocean Networks Canada archive. For more info about how the military monitors and removes sensitive data from the ONC archive, read the following article "Listening In: The Navy Is Tracking Ocean Sounds Collected by Scientists" published in 2014 by The Atlantic. 0:00 First recording 5:00 Second recording 10:00 Third recording 15:00 Fourth recording