On 12 January 2020, in an interview with "The Sunday Times", Wallace said that the UK "must be prepared to fight wars without the US", one of the UK's key allies. He stated that the upcoming Defence Review "should be used to make the UK less dependent on the US in future conflicts". His comments were made in response to US President Donald Trump's America First isolationist policies. Wallace also said that the next Defence Review would be the 'deepest review' of Britain's defence and foreign policies since the end of the Cold War in 1991.