@taamvan said in On this day during W.W. 2:
While it wasn’t the main factor early on in the war, the US had broken the Japanese codes and had functional radar, very long range planes and incredibly detailed information and plans (yamamoto ambush) and other unknown technologies–I personally think that this led the Japanese to paranoia as US ships and planes kept showing up at the most inopportune times.
And interestingly, the Japanese also suffered on at least one occasion – at Midway – of what could be called anti-paranoia, which was to assume that the Americans would obligingly follow the timeline which Japan had scripted for them. Their Midway operation did not include any contingency plans to deal with the possibility that one or more American carriers might inconveniently show up ahead of schedule…so when that actually happened, Nagumo had to improvise on the spot (and do so in the absence of adequate information, a problem that haunts every military commander) and the operation started falling apart. It didn’t help that the Japanese were trying to accomplish two contradictory things at once: conducting an amphibious landing, an operation which needs to be carefully coordinated and which needs to take into account such immutable factors as the tides, and destroying a mobile enemy carrier force, an operation which involves many unknowns and which requires a high degree of flexibility. Their concept was built around a “First A, then B” scenario, but they ended up facing an A+B scenario.
I’ve sometimes wondered how Midway would have turned out if Yamamoto had dispensed with the diversionary Aleutian operation and instead had assigned the light carriers Junyo and Ryujo to augment Nagumo’s main carrier group. This would have given him added reconnaissance capabilities, a reserve attack force, and a bigger combat air patrol to protect his fleet from enemy fighters.