“UFO” spotted shot down over Yukon Territory Canada

NORAD spotted UFO over Yukon and US military shoots it down right away . Why such a different response compared to the China balloon ?

https://nationalpost.com/news/world/high-altitude-object-spotted-over-northern-canada

https://nypost.com/2023/02/03/what-is-the-suspected-chinese-spy-balloon-flying-over-montana/