... 1912.A World War I heroGöring joined the military after graduation. During World War I (1914–18; a war that started as a conflict betweenAustria-Hungary and Serbia and escalated into a global war involving ... who fought against Germany, Italy, andJapan during World War II. The makeup of the Allied powers changed over the course of the war. The first Allied countries were Great Britain and France. Ger-many ... toward war With Hirohito’s approval, Japan went to war againstChina in July 1937; in fact, he took a great interest in the mil-itary conflict. In September 1939 Germany started World War II...