 As a reservist for the Royal Netherlands Army, he was made a Major (Grenadiers' and Rifles Guard Regiment) in 1995, and was promoted to Lieutenant Colonel in 1997, Colonel in 2001, and Brigadier General in 2005.As a reservist for the Royal Netherlands Air Force, he was made Squadron Leader in 1995 and promoted to Air Commodore in 2005.As a reservist for the Royal Marechaussee, he was made Brigadier General in 2005.