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The first tactical employment of Marine parachutists came with the large-scale landing exercise of the Amphibious Force, Atlantic Fleet, in August 1941. This corps, under the command of Major General Holland M. Smith, consisted of the 1st Marine Division and the Army's 1st Infantry Division. The final plan for the exercise at New River, North Carolina, called for Captain Williams' company to parachute at H plus 1 hour onto a vital crossroads behind enemy lines, secure it, and then attack the rear of enemy forces opposing the landing of the 1st Infantry Division. Captain Howard's company would jump on the morning of D plus 2 in support of an amphibious landing by Lieutenant Colonel Merritt A. Edson's Mobile Landing Group and a Marine tank company. Edson's force (the genesis of the 1st Raider Battalion) would go ashore behind enemy lines, advance inland, destroy the opposing reserve force, and seize control of important lines of communication. Howard's men would land near Edson's objective and "secure the road net and bridges in that vicinity."
For the exercise the parachutists were attached to the 1st Marine Aircraft Wing, which operated from a small airfield at New Bern, North Carolina, just north of the Marine base. The landing force executed the operation as planned, hut Holland Smith was not pleased with the results because there were far too many artificialities, including the lack of an aggressor force. A shortage of transport planes (only two on hand) handicapped the parachutists; it took several flights, with long delays between, to get just one of the under-strength companies on the ground. Once the exercise was underway, Smith made one attempt to simulate an enemy force. He arranged for Captain Williams to re-embark one squad and jump behind the lines of the two divisions, with orders to create as much havoc as possible. Williams' tiny force cut tactical telephone lines, hijacked trucks, blocked a road, and successfully evaded capture for several hours. One after-action report noted that "the introduction of paratroops lent realism to the necessity for command post security."
Smith put great faith in the potential value of airborne operations. In his preliminary report on the exercise, he referred to Edson's infantry/tank/parachute assault on D+2 as a "spearhead thrust around the hostile flank" and emphasized the need in modern warfare for the "speed and shock effect" of airborne and armor units. With that in mind, he recommended that his two-division force include at least one "air attack brigade" of at least one parachute regiment and one air infantry regiment. (The term "air infantry" referred to ground troops landed by transport aircraft.) He also urged the Marine Corps to acquire the necessary transport planes. Despite this high-level plea, the Marine Corps continued to go slowly with the parachute program. At the end of March 1942, the 1st Battalion finally stood up its third line company, but the entire organization only had a total of 332 officers and men, less than 60 percent of its table of organization strength (one of the lowest figures in the division). The 2d Battalion, still recovering from the loss of its first Company A, had barely 200 men."
Silk Chutes and Hard Fighting: US. Marine Corps Parachute Units in World War II (The Jump into Parachuting)