"Due to the Danish defence opt-out, Denmark cannot participate in the "elaboration and the implementation of decisions and actions of the Union which have defence implications”. In practice, this means that Denmark is unable to participate in EU military operations or in the cooperation on development and acquisition of military capabilities within the EU framework, nor will Denmark participate in any decisions or planning in this regard. However, Denmark will not prevent the development of closer cooperation between Member States in this area."
Peace (and not Pesco) on Earth to men of goodwill by Ivan Grech Mintoff
"This week, our PM announced in Parliament that he has decided that Malta will opt out of PESCO - the EU's new defence and security cooperation - because "certain operations of the new entity might be in breach of the neutrality clause of Malta's Constitution"