Kirchner's 'Self-Portrait as a Soldier' was painted in 1915, a year after the commencement of the First World War (WW1). The impetus for Germany's involvement in WW1 was its alliance with Austria-Hungary who declared war on Serbia on the 28th of July 1914, following the assassination of Archduke Franz Ferdinand. The German invasion of Belgium in 1914 saw Britain declare war on Germany. The alliance system of WW1 pitted the Centrals Powers, encompassing Germany, Austria-Hungary, the Ottoman Empire and Bulgaria against the Allied Powers which compromised Russia, France, Great Britain and the United States. Throughout the war non-material and material living standards and civil liberties in Germany were extremely poor. Mary Cox's 'The First World War and the Blockade of Germany, 1914–1919' cites "that economic warfare in Germany was premeditated and designed to swiftly destroy German's entire economic and financial system." As well as "the destruction of Germany's communication and financial systems". Cox also states that "the blockade was to blame for the listlessness of German youth and their increased involvement in criminal activities". Matthias Blum contends that the "economic and physical deprivation" of WW1 left "deep scars of various kinds" upon Germany. Ultimately, Britain's naval blockade against Germany established to restrict the supply of food, oil and weaponry from 1914 to 1915 caused "deliberate starvation of citizens", disease and death amounting to comprehensive reduction of socio-cultural and political stability.