ORIGINAL: bradfordkay
Well, I always wondered why they had a diversionary strike at the Aleutians if the plan was to entice the USN out to Midway for the decisive battle ...
The AL plan was imposed upon Yamamoto from higher HQ. Re Shattered Sword, the object of Op AL was to destroy strategic points in order to check enemy "air and ship maneuvers in this area," but the wx was so rough off the Aleutians that these "maneuvers" were difficult at best. Just ask any crab fishermen.
By getting a foothold in the Aleutians, IJ also hoped to interupt commo links between the US and USSR in order to adversely affect supply convoys between them thru the Berents Sea, and to help protect Midway's northern flank after MI was successful and the island secured.
Re Sword, Attu and Kiska proved to be nothing more than consolation prizes for the failure at MI.