What were the 2 causes of ww2?

Two major causes of World War II were the Treaty of Versailles and the rise of totalitarian regimes. The Treaty imposed harsh penalties and reparations on Germany after World War I, fostering resentment and economic hardship. This environment contributed to the rise of Adolf Hitler and the Nazi Party, who aggressively expanded German territory and violated international agreements, leading to the outbreak of war in 1939. Additionally, the failure of appeasement policies by European powers allowed aggressive expansion by Axis powers, further escalating tensions.