Step 1 : Introduction to the question "What military rank did Elvis reach before he was discharged in 1964?"
...Elvis was drafted into the Army right in the middle of his career. While the Army offered to have him only entertain the troops with his music, Elvis chose to serve as a soldier to prove to himself and his critics that he could withstand the stress and perils of combat. He left active duty in 1960, but remained inactive until he was formally discharged in 1964.