Who said soft power isn't a thing? Queen Elizabeth II and other senior members of the British royal family will be dispatched to the G-7 summit Friday in a reflection of the important diplomatic role the royal family often plays for Britain. The queen will be joined by Prince Charles, Prince William, the Duchess of Cornwall and Duchess of Cambridge for events at the Eden Project, a climate and biodiversity complex in Cornwall. On Sunday, the queen will host Biden and first lady Jill Biden at Windsor Castle. The queen has met 12 out of 14 serving U.S. presidents during her nearly 70-year reign.