Related Clues:

• From __ B: basic step
• Corps VIP
• ___ X'er (Baby Boomer's child, perhaps)
• ___ B (first step)
• USAF bigwig
• -- -Z (completely)
• From ___ Z (how this puzzle goes?)
• ___-Xers (baby boomers' kids)
• See 51-Down: Abbr.
• Getting from ___ B
• Patton or Petraeus: Abbr.
• From __ Z (completely)
• 41-Down was named after one: Abbr.
• ___-Xers
• Sr. military rank