Leapfrogging (strategy)
Leapfrogging was an amphibious military strategy employed by the Allies in the Pacific War against the Empire of Japan during World War II. The key concept was to bypass heavily fortified enemy islands instead of trying to capture every island in sequence en route to a final target. The reasoning was that those heavily fortified islands could simply be cut off from their supply chains (leading to their eventual capitulation) rather than needing to be overwhelmed by superior force, thus speeding up progress and reducing losses of troops and materiel. The strategy proved to be successful; although some Japanese garrisons survived longer than the Allies expected, the enemy troops were eventually completely isolated from their main supply chains and incapable of organizing an effective defense against Allied forces.