I totally agree , it ' s perfect as it is right now . I wouldn ' t want them to add something that ruins the balance so I ' ll take it as it is . <| sep |> Any idea why Japan attacked Pearl Harbor ? Read up on War Plan Orange . With their access to strategic resources cut by the Americans , they needed to find a way to supply themselves . Invading Russia would be a logistical nonstarter without fuel , rubber and a host of other commodities . With the embargo , the US effectively herded Japanese military intentions to the south , while holding what they felt was an ace in the form of Dougie Mac in the Philippines . Under the Washington Naval Treaty , the US held a paper advantage in naval tonnage . Most of that force could be expected in the Pacific Theater given the friendly relationship the Americans had with the British . I think it ' s reasonable to assume that the Japanese were aware of not just War Plan Orange , but also the ABDA agreements related to the defense of the southern Pacific region . That meant that they couldn ' t just bypass the Philippines , and that the US would indeed enact Plan Orange . The Japanese plan to counter the expected American thrust is seen in their technological and tactical choices . They favored long range torpedoes and night attacks by smaller craft . The idea was that they would take pot shots at the US fleet as they sailed across the Pacific , a war of attrition that would weaken the fleet to the point where the Japanese could land a decisive blow . The deviation from the plan came as a result of an innovative naval officer applying the lessons learned from the British raid on Taranto to the threat that FDR tried to show them . Moving the US fleet from San Diego to Hawaii put it within reach of Japan ' s naval aviation force who themselves were sporting highly secretive new aircraft types . Instead of waiting for the US to set sail , they could land the decisive blow at the start of the conflict , and free up naval assets to hasten their acquisition of the required strategic resources . we were only engaged in supplying arms to countries fighting Germany , nothing to countries fighting Japan or is that wrong ? American aid to Nationalist Chinese forces was a topic of contention in the prewar negotiations with the Japanese . I forget the exact context in which the Japanese referenced it while trying to get the US to lift the embargo , but I do recall reading about it .