Unlike the robust recruitment efforts of World War I and World War II, recruitment today is more focused on maintaining a standing military. As such there’s more emphasis on character, skill, and career development instead of a call to arms in response to a specific threat.
As a kid, I spent a lot of time at the beach with my grandparents in Ocean City, New Jersey. I have fond memories, many of them of my grandfather humming something while working or cooking. Once I asked him what song he was singing, and he answered “the Air Corps song.”