Complex sentence: New Zealand has no established church although Anglicanism is required to be the religion of the Monarch of New Zealand (who is described as "Defender of" The "Faith") and freedom of religion has been protected since the signing of the Treaty of Waitangi.
Split into simpler sentences: New Zealand has no state religion or established church, although Anglicanism is required to be the religion of the Monarch of New Zealand (who is described as "Defender of" The "Faith"). Freedom of religion has been protected since the signing of the Treaty of Waitangi.