In addition, the massive increase in spending by the Leipzig municipal government caused the city's debts to be a major source of worry for Goerdeler. By 1934 he clashed with Hitler over his foreign policy, as Germany signed a nonaggression treaty with Poland to which Goerdeler was opposed and demanded annexation of Polish territories. He wrote to Hitler that continued Polish possession of territories in Gdańsk Pomerania and Greater Poland was "thorn in country's economic flesh and honour" and that "the German people must fight for security of their existence".