Career
Following the outbreak of the Second World War he was appointed Minister of Defence in August 1939 as part of the second De Geer Cabinet. Dijxhoorn clashed with the Supreme Commander of the Dutch Army, General Izaak H. Reijnders over strategy, leading to Reijnders" resignation and replacement with General Henri Winkelman. Together with the Queen Wilhelmina and the rest of the cabinet he left for London and continued as Minister of Defence in the Dutch government-in-exile until his resignation in June 1941.
Dijxhoorn was subsequently appointed the Dutch Military Representative to the Combined Chiefs of Staff in Washington.