Since you asked twice, I'll take a stab. They want to know you and why you did the things you've done. Example: "I finished college in 3.5 years" = Something you've done. "I finished college in 3.5 years because I wanted to save money, I enjoyed the challenge, and I was hoping to get deployed/hired sooner" = Says something about YOU and your work ethic and values. Question that comes to mind is when they say "Tell me about yourself." They don't want ONLY want to hear about where you grew up, where you went to school, what jobs you've had, etc. Your resume tells them that, and they've already read that. They want to know what makes you you. What do you like to do, what are your strengths, what are your weaknesses, what bugs you, what motivates you, and so on. Sure what you do reflects on who you are, but it's not the whole story.