Richard A. Rinaldi is a graduate of Swarthmore College and Yale University. Formerly a human resources specialist with the federal government, he has a long-term interest in military history. His The United States Army in World War I: Ground Units, 1917—1919 was published in 2005; Order of Battle of the British Army 1914 in 2008; and British Armour and Recce in the Second World War: Units, Organization and Equipment in 2013. He cooperated with Ravi Rikhye on Indian Army Order of Battle in 2011. He has also teamed with Dr Graham Watson on The British Army in Germany (BAOR and After): An Organizational History 1947-2004 published in 2005 and The Corps of Royal Engineers: Organization and Units, 1889-2018 in 2018.