From: Northwestern Georgia, USA
It is amazing how quickly momentum changed sides in the Pacific in World War II. In my opinion, the two major reasons for that shift were Japanese logistical inadequacies and Allied intelligence capability. These bought the Allies the time needed for their logistics and production to overwhelm Japan.
America and the Allies had been knocked down, but by the middle of 1942 had had sufficient time to get back up, regain their equilibriums, and begin effective countermeasures and offensives. Consider that on December 7, 1941, the Japanese were able to attack all over the Pacific with effective surprise, yet just seven months later the Allies knew they were heading to Midway well ahead of time and managed to put together a force capable of winning that critical battle.
Also, it was becoming clear that Japan was incapable of sustaining effective offensive operations against decent opposition, mainly because of logistics (certainly not due to any deficiency in the quality of Japanese troops). Two months after Midway, a hastily put together and poorly supplied and supported Allied invasion of Guadalcanal succeeded and then repulsed every effort by Japan to retake the island over four months.
Already, the logistical and production inequalities between the two sides had swung the balance of power. For example, the attrition to Japanese carriers had permanetly weakened that force, while the Allies were only temporarily set back and were in the process of taking an overwhelming lead in carriers.
< Message edited by Canoerebel -- 5/17/2011 5:31:10 PM >