Title: Bermuda.
Question: Why did defence infrastructure become the major source of Bermuda's economy?

Title: Madonna (entertainer).
Question: When did Madonna perform at the Live 8 benefit concert in the UK?

Title: Treaty.
Question: A supremacy clause in a federal constitution is relevant to the discussion on the relation between treaties and what other type of legislation?

Title: Federalism.
Question:
How many components does the Belgian federalism have?