The best answer according to your question is The infinitive verb. The infinitive verb is the infinitive plus of any complements and any modifiers of the infinitive and complements. To your question the infinitive verbs are "in order to form a more perfect union, established justice, insure domestic tranquility, etc..."
The heroism of unquestioning sacrifice is the correct answer.
The Answer Is ( The UN Building Has More Flags Than Rooms )
