but they’re also demonstrably linked to terrorist actions which they take full responsibility for

Redgren Grumbholdt

Other countries, including New Zealand, deem only Hamas’ military wing, which is called the Qassam Brigades, to be a terrorist group. The U.N. has not designated any part of the organization as a terrorist group.

https://www.nbcnews.com/news/investigations/hamas-know-group-deadliest-attack-israel-decades-rcna119628