The main act was the attack on Pearl Harbor.
Adolf Hitler.
Serbia
Its World War 1 u idiot...
because world war 1
The Russians pushed from the East. The Allies pushed from the North and South.
Japan
Germany
Adolf Hitler.
When World War One developed, the US followed a policy of neutrality towards the nations involved in that conflict. In 1917, however, the German announcement that it would resume unrestricted submarine warfare pushed the US into the war against Germany and her allies.
May 1940
In World War 2, DORA was an abbreviation for the Defence of the Realm Acts (1939). These acts gave wide ranging powers to the government.
The assassination of Archduke Ferdinand was the one event that pushed Europe over the edge and brought about World War I.