John Roos led Wilson Sonsini, one of Silicon Valley's top law firms, before becoming a venture investor, and he has built his career around helping companies actually succeed in Japan, from finding customers to hiring local leaders and navigating regulations. His deep ties to Japan, including receiving the country's Grand Cordon of the Order of the Rising Sun, along with his work connecting U.S. tech, Japanese businesses, and national security interests, make him a rare figure who blends investing with cross-border diplomacy.