Directions: Fill in the blanks with the appropriate words. 

The instability created in Europe by the First World War (1914-18) set the stage for another international conflict—World War II—which broke out two decades later and would prove even more _____(1)_____. Rising to power in an economically and politically unstable Germany, Adolf Hitler, leader of the Nazi Party, rearmed the nation and signed _____(2)_____ treaties with Italy and Japan to further his ambitions of world domination. Hitler’s invasion of Poland in September 1939 drove Great Britain and France to _____(3)_____ war on Germany, marking the beginning of World War II. Over the next six years, the _____(4)_____ would take more lives and destroy more land and property around the globe than any previous war. Among the estimated 45-60 million people killed were 6 million Jews ______(5)______ in Nazi concentration camps as part of Hitler’s diabolical “Final Solution,” now known as the Holocaust.