Answer: Wake Island
Enterprise was the second of the planned class of two Yorktown-class carriers built for the US Navy. Commissioned in May 1938, she operated as part of the Atlantic Fleet until April 1939, when she was ordered to the Pacific. Initially stationed in San Diego, the ship, alongside the rest of the fleet, was forward deployed to Pearl Harbor in Hawaii in an effort to shackle the increasingly expansionist aims of Japan in the Pacific region. As part of her role, Enterprise, alongside the other carriers assigned to the Pacific Fleet, were tasked with transporting aircraft to aid in the defence of the island bases the US had established in the Pacific. On 28 November 1941, Enterprise departed Pearl Harboron another such mission, delivering a US Marine Corps fighter squadron to Wake Island, located 2,500 miles to the west of Hawaii.
Originally, Enterprise was scheduled to return to Pearl Harbor on 6 December, but bad weather led to the ship being delayed, and she was still more than 200 miles distant on the morning of 7 December. Having launched a number of search aircraft, which were ordered to then return to Hawaii, the ship received reports that Pearl Harbor was under attack by the Japanese. Having undertaken a fruitless search for the enemy, Enterprise finally returned in the evening of 8 December. The ship was refuelled and resupplied within 12 hours, and returned to sea to guard against possible additional attack, at the same time removing the carrier from harm's way.