Dramatical entrance in war

Japan entrance in Second World War is a dramatical and surprising event in political history of world.
Japan enter in Second World War with an offencive style and starts by historical attacking in Perl Herbor at 7.50 AM Hawaiian time in 1941 7th December. Japanese attack became more dramatical when over the 7 hours japan attack on US held, Philipines, Guam, Wake Island and British Empire held Borneo, Malaya, Singapore and Hong Kong

Political and war analyst says that in that time each and every attacking by Japan was a strategy to cripple US fleet, Occupying Oil mines and Maintaining control over China.