Which military group was created to support air operations behind enemy lines during World War II?

The group created to support air operations behind enemy lines during World War II is accurately identified as the Carpetbaggers. This specialized unit was part of the Army Air Forces, known for its covert operations that involved delivering supplies and conducting air drop missions to assist resistance movements in occupied territories. The missions were crucial in supporting guerrilla warfare and disrupting enemy operations, making the Carpetbaggers vital to the strategic efforts of the Allies.

In contrast, while paratroopers were trained for airborne assaults and landings, their primary role was not specifically focused on supporting air operations behind enemy lines. Rangers, known for their elite light infantry capabilities, conducted a variety of missions including raids, but they were not solely dedicated to the support of covert air operations. Marine Raiders, similar to Rangers, carried out special operations but within the maritime domain, not specifically in relation to air support missions. Thus, the distinct focus and function of the Carpetbaggers during the war solidifies their role as the correct answer in this context.