I believe Carinthia made the Danish Military issue bags (or was it Dutch ?) I have one that looks for all intents and opurposes life the Defense 4, just without the branding. Got it for a song from a mate who swapped it for something else while on deployment OS.
That is true. The Defence 4 is the Danish military issue bag.
But other countries' military use it too, I believe.
When talking sleepingbags, you can have even the best sleeping bag in the world, and feel cold, if your sleeping mat is not good enough.