Who is Chief of the Air Staff?

• A. Air Chief Marshal Michael Wigston
• B. Air Chief Marshal Stephen Hillier
• C. Air Chief Marshal Sir Richard Knighton
• D. Air Marshal Stuart Peach

Answer: (A)

The Chief of the Air Staff is the Royal Air Force’s professional head, a four-star Air Chief Marshal who leads the RAF and advises on air power at the highest level. Michael Wigston held that appointment after taking over from Stephen Hillier in 2018, making his name the correct one for the post in the period this question references. The other names are different senior officers who either held the role at different times or in different capacities (for example, Hillier was a previous CAS, while Knighton would later hold the post and Peach is known for other high-level UK defence roles).