If Operation Dewey Canyon, fought in the northern I Corps area of South Vietnam and Laos in early 1969, was defined in relation to World War II Marine Corps battles in the Pacific, it would include the isolation of Guadalcanal, the miserable terrain, weather and vegetation of Bougainville, an entrenched enemy similar to Peleliu, and the strategic importance of Iwo Jima. Most WWII Marine battles were fought by division-sized forces that often...