On which Pacific Island did the Seabees land with the Marines to put a shell-pocket airfield in operation?

The correct answer is Guadalcanal, as it marked one of the first significant engagements of the Seabees during World War II. The Seabees' primary mission at Guadalcanal was to establish infrastructure that included a shell-pocket airfield, crucial for providing air support and logistics to U.S. forces in the Pacific theater. This operation set a precedent for their subsequent roles in other campaigns, highlighting the importance of their work in enhancing operational capabilities in combat zones.

Guadalcanal was integral due to its strategic location, allowing forces to launch further operations into the Pacific. The Seabees played a significant role in not just construction but also in supporting the ongoing combat efforts on the island. Successful completion of the airfield at Guadalcanal demonstrated the Seabees’ ability to respond swiftly to tactical needs during warfare.