Prominent among those who have argued for the existence of Yamashita's gold are Sterling Seagrave and his wife Peggy Seagrave, who wrote two books related to the subject: "The Yamato Dynasty: The Secret History of Japan's Imperial Family" (2000) and "Gold Warriors: America's Secret Recovery of Yamashita's Gold" (2003). The Seagraves contend that looting, including more than 6000 tonnes of gold, was organized on a massive scale, by both "yakuza" gangsters such as Yoshio Kodama, and the highest levels of Japanese society, including Emperor Hirohito. The Japanese government intended that loot from Southeast Asia would finance Japan's war effort. The Seagraves allege that Hirohito appointed his brother, Prince Yasuhito Chichibu, to head a secret organization named "Kin no yuri" ("Golden Lily") () for this purpose. It is purported that many of those who knew the locations of the loot were killed during the war, or later tried by the Allies for war crimes and executed or incarcerated. Yamashita himself was convicted of war crimes and executed by the United States Army on February 23, 1946, in Los Baños, Laguna, the Philippines. According to the Seagraves, numerous Golden Lily vaults were found by Edward Lansdale and Severino Garcia Diaz Santa Romana in caves north of Manila in the high valleys and the 'M-Fund', which was named after Major General William Marquat, was established from Santa Romano and Lansdale's work. Sterling Seagrave alleged that Santa Romana (Santy) tortured Yamashita's driver Major Kojima Kashii to obtain the probable locations of the loot. The Seagraves wrote that Lansdale flew to Tokyo and briefed MacArthur and his Chief of Intelligence officer Willoughby, later flew to the United States to brief Clark Clifford and returned with Robert Anderson to inspect several caves in Philippines with Douglas MacArthur. More than 170 tunnels and caves were found. Ray Cline believes that both Robert Anderson and Paul Helliwell created 176 "black gold" banking accounts in 42 countries after moving the loot by ship to support future United States operations.