a secondary priority, and had to consider the fact that a large portion of Australia's military and naval forces were deployed overseas. Ward's theory was based on an incomplete understanding of this plan (which had been submitted to and rejected by Ward's own government, catered for the defence of strategic northern locations, including Darwin and Townsville, and instead of simply abandoning the rest of the country to the Japanese, advocated a scorched earth policy and guerrilla warfare to slow invaders until other forces could be deployed), along with public knowledge of evacuation plans for regions of Queensland (which, instead of a total evacuation south, was to clear potential battle sites of civilians). Ward did not present any direct evidence of his claims at the time, and Menzies, along with all the ministers that had served under him during the previous government, denied the allegation. At an Advisory War Council meeting in December 1942, Menzies, among others, expressed concern that a responsible minister was making claims that could only be disproved through the disclosure of secret defence plans. Curtin did little to quell Ward's attacks, and Ward continued to claim that Menzies and Fadden were responsible for the "defeatist" and "treacherous" plan. Public awareness of the alleged plan was raised when General Douglas MacArthur referred to it during a press conference in March 1943, during which he coined the term 'Brisbane Line'. Ward repeated his assertions over the following months, and when asked to provide proof, claimed that he had been informed of the removal of documents relating to the plan from the official files. Curtin appointed a Royal Commission led by Charles Lowe to determine if such documents had existed, and if the Menzies administration had made such plans. The Commission reported in July 1943 that there was no evidence supporting an official plan to abandon most of Australia to invading forces, and that the files for the time in question were complete. The royal commission and the Brisbane Line controversy contributed to Curtin and the Labor Party winning the 1943 federal election by a significant margin, but Ward was effectively demoted by being assigned the portfolios of Transport (the assets of which were under direct Army control) and External Territories (most of which had been captured by the Japanese). Post-war claims Proponents of the existence of the Brisbane Line proposal often refer to the existence of concrete tank traps