Was Guadalcanal the Pacific War's turning point?

Was Guadalcanal the true turning point in the Pacific because Japan lost a long war of attrition there?

It is a defensible marker, but the phrase turning point can hide the cumulative losses and constraints that shape a war before one named battle.

Guadalcanal can reasonably be identified as a turning point, especially when the campaign is viewed as an attritional defeat for Japan. The term remains imprecise because wars rarely move in one direction until a single battle reverses them. Victories can impose losses that make later defeat more likely, as the German success at Denmark Strait still led to the loss of Bismarck. The balance of replacement capacity also matters: Britain could absorb the loss of Hood more readily than Germany could replace one of four capital ships. For the Battle of the Atlantic, the arrival of Castle-class corvettes in numbers is offered as a more useful marker. Turning points describe how historians organize a war as much as a clean change in battlefield momentum.