They're literally probing Canadian defenses.
https://www.ctvnews.ca/vancouver/article/canadian-military-e...
While it seems likely... that article actually discusses them probing American waters and air space (edit: actually international air space closest to America), and not Canadian...
alt Hacker News
While it seems likely... that article actually discusses them probing American waters and air space (edit: actually international air space closest to America), and not Canadian...