How did the Austrian anschluss lead to war?

The Austrian Anschluss, or annexation of Austria by Nazi Germany in March 1938, violated the Treaty of Versailles and heightened tensions in Europe. It emboldened Adolf Hitler's expansionist ambitions and demonstrated the failure of appeasement policies by other European powers. The annexation also alarmed neighboring countries, particularly Czechoslovakia, which faced similar threats. These aggressive moves ultimately contributed to the outbreak of World War II, as they undermined international stability and confidence in diplomatic resolutions.