Sweden launched its first military reconnaissance and surveillance satellite into orbit at 9:00 a.m. Swedish time, marking the country's operational entry into the space domain and delivering a national capability to detect and analyze threats on a global scale. The
You can’t keep a satellite launch secret. Also you can send a message by announcing such a launch. Especially to so-called “allies” who don’t take the whole being allied thing that seriously, and like blackmailing their supposed allies with denying them assistance.