Henry VIII’s foreign policy during the 1540’s was his war efforts, mainly focusing on Scotland and France. Henry’s interest in Scotland was in an attempt a large-scale plan to rule all of Britain, to avoid a war on two fronts once he went to war with france and due to early successes in Scotland, Henry genuinely believed he could achieve this. Further on Henry continued the war to allow his son, Edward, to marry Mary, queen of Scots. Up until Henry's divorce with Catherine, France had been England's largest and strongest ally due to his marriage. Following his divorce this fell apart and France ultimately became England's largest enemy and England became politically isolated. The war became very costly for England as all majority of its income