Like almost all of the British elite in the interwar era, Henderson believed that the Treaty of Versailles was far too harsh on Germany and that if only the terms of Versailles were revised in Germany's favour, another world war could be prevented. Neville wrote that the charge that Henderson was pro-Nazi was incorrect since Henderson had advocated the revision of Versailles in Germany's favour long before Hitler had come to power.
Like most of the British elite during the interwar period, Henderson believed that the Treaty of Versailles was excessively punitive towards Germany and that if only the terms of Versailles were adjusted in Germany's favor, another world war could be avoided. Neville asserted that the accusation that Henderson was pro-Nazi was unfounded since Henderson had advocated for the revision of Versailles in Germany's favor long before Hitler came to power.