Quote Originally Posted by namvet View Post
.... but the PI campaign did force Japan off its time tabe of conquest and gave us time to rearm at home......
No, the Japanese time table was not affected by the defense of Bataan/Corregidor, nor was the US rearmament effort.

The Japanese actually finished their program of conquest months earlier than they had expected. The crack Japanese 48th. Division was withdrawn from the Philippines on schedule to participate in the NEI campaign, and all of the other Japanese offensives were either on schedule or had their dates advanced.

As for US rearmament, the US Navy actually began an accelerated construction program in 1938, but the US rearmament program really got underway upon the Fall of France in July, 1940. That was when Congress passed the "Two-Ocean" Navy Act which authorized massive naval construction programs, and legislation to spend similar sums on rebuilding the Army and the Army Air Force. The Defense of Bataan had absolutely no effect on these programs which were well under way by 1942.

Quote Originally Posted by namvet View Post
this almost happened again on Guadalcanal.....faced with superior jap forces the marines ashore came close to running up the bed sheet.....
The Marines on Guadalcanal never faced "superior [J]ap[anese] forces". The Japanese forces ashore on Guadalcanal were, from the beginning seriously outnumbered by the US Marines and this situation continued throughout most of the campaign, according to Richard B. Frank in his book "Guadalcanal". Moreover, the Marines were better fed, better equipped, better supported, and one might add, better led, than the Japanese forces which were subsequently landed.

The only Japanese forces which could be in any way described as "superior" were the Japanese air resources in the initial stages of the battle, and this superiority quickly faded. The Japanese occasionally deployed "superior" naval squadrons such as the one that inflicted the severe defeat on the Allied naval force at the Battle of Savo Island on 8-9 August, and the one that was driven off by an inferior American naval squadron on 13 November in the First Naval Battle of Guadalcanal.