The fast-moving jets could strike at high-speed targets with precision, and their presence had a powerful psychological impact on the insurgents. Helicopters, like the Sikorsky S-61, were also employed for resupply missions and troop transport, especially to areas that were too difficult to reach by land. The versatility of air assets in resupplying and extracting troops was indispensable, as ground forces often struggled to maintain control of remote areas.