In May 2010 Felipe VI de Borbon, King of Spain (above) asked Judge Butler to write a book about Spain's involvement in the American Revolutionary War. His first book in response to this Royal Command was published in 2015: Galvez/Spain our forgotten ally in the American Revolutionary War: A Concise Summary of Spain's Assistance. It has won five awards. George Washington's Secret Ally follows through with a version ideal for students and/or as a gift to your favorite historian.