He was demoted from private first class to private and briefly imprisoned in the brig. He was later punished for a third incident: while on night-time sentry duty in the Philippines, he inexplicably fired his rifle into the jungle.
In October 1959, just before turning 20, Oswald traveled to the Soviet Union, a trip he planned well in advance. On September 11, 1959, he received a hardship discharge from active service, claiming his mother needed care, and was put on reserve.