Distinguished Service Medal to Pearl Harbor Spotter

L Lockhart, an American minute man, receives a hero's reception for his role in detecting the Pearl Harbor attack on December 7th. He is awarded the Distinguished Service Medal and expresses his gratitude. Lockhart plans to attend officer candidate school to train for a second lieutenant's commission.

What was L Lockhart's initial expectation when he joined the Army?

What is the next step for L Lockhart after receiving his decoration?