 At the conclusion of his course at the School of Military Government , Hubbard failed to pass his examinations – finishing only mid @-@ way down the class list – and did not qualify for an overseas posting . He was posted in January 1945 to the Naval Civil Affairs Staging Area in Monterey , California for further training but , as he later acknowledged , he became depressed and fell ill with a duodenal ulcer . He reported sick with stomach pains in April 1945 and spent the remainder of the war on the sick list as a patient in Oak Knoll Naval Hospital in Oakland , California . A Church of Scientology account asserts that " eventual combat wounds would finally preclude him from serving with American occupation forces . " 
