In May 1943, the Combined Chiefs of Staff decided to seize them. This difficult assignment fell to Admiral Chester W. Nimitz who bore the impressive titles of Commander in Chief, Pacific, and Commander in Chief, Pacific Ocean Areas (CinC-Pac/CinCPOA), based at Pearl Harbor in Hawaii. He turned to four very capable men who would carry out the actual operation: three admirals who were experts in amphibious landings, fast carrier strikes, and shore bombardment, and Major General Holland M. Smith, who was the commanding general of the Marines’ V Amphibious Corps and now also would be Commanding General, Expeditionary Troops. It was he who would command the troops once they got ashore. Original cautious plans for steppingstone attacks starting in the eastern Marshalls were modified, and the daring decision was made to knife through the edges and strike directly at Kwajalein Atoll in the heart of Marshalls’ cluster of 32 atolls, more than 1,000 islands, and 867 reefs. Kwajalein is the largest atoll in the world, 60 miles long and 20 miles wide, a semi-enclosed series of 80 reefs and islets around a huge lagoon of some 800 square miles. Located 620 miles northwest of Tarawa and 2,415 miles southwest of Pearl Harbor, its capture would have far-reaching strategic significance in that it would break the outer ring of Japanese Pacific defense lines. Within the atoll itself there were two objectives: Roi and Namur, a pair of connected islands shaped like weights on a four-mile barbell in the north end, and crescent-shaped Kwajalein Island at the south end. The 4th Marine Division under Major General Harry Schmidt was to assault Roi-Namur, and the Army 7th Infantry Division under Major General Charles H. Corlett would attack Kwajalein. After these islands were taken, there was one more objective in the Marshalls: Eniwetok Atoll. This was targeted for attack some three months later by a task force comprised of the 22d Marine Regiment (called in the Corps the “22d Marines”) and most of the Army’s 106th Infantry Regiment. Brigadier General Thomas E. Watson, USMC, would be in command.