US Army interview questions

USAJobs referred me to the hiring committee. My resume was reviewed by the clinic and I was called to come in for interview. I met with NCOIC of the clinic and one of the clinic doctors. We spent about 15 minutes going over the job and the expectations. I asked them to elaborate on several aspects, they did. They asked me some questions about my work history, it was very casual. We discussed what I could bring to the position they asked me what my strengths were, when I felt I could improve upon myself. I asked them a few questions, they showed me around the clinic and we concluded the interview. I received a phone call two days later with they job offer.