I want to know the answer to the following question:
What has recently led to a resurgence in the Chamorros culture and preservation of their old ways?
All the background I'm provided with is that "The increasing numbers of Chamorros, especially Chamorro youth, relocating to the U.S. Mainland has further complicated both definition and preservation of Chamorro identity.[citation needed]". Is that enough to answer the question?
Answer: no