Which amphibious vehicle is commonly used for direct amphibious assault?

The LCAC, or Landing Craft Air Cushion, is specifically designed for direct amphibious assaults, making it the correct choice for this question. Its air-cushion technology allows it to traverse a variety of terrains, including water and land, providing rapid and flexible troop and equipment transport from ship to shore. This capability is essential for conducting operations in contested environments, where speed and efficiency can greatly influence the success of an amphibious operation.

The other vehicles listed serve different purposes within military operations. The AH-1 Cobra is primarily an attack helicopter used for close air support missions, while the CH-53E Super Stallion is a heavy-lift helicopter designed for transporting troops and equipment. The MV-22 Osprey, a tiltrotor aircraft, is versatile in its capacity to transport personnel and supplies but is not dedicated to direct amphibious landings like the LCAC. Thus, while each of these vehicles plays a significant role in military operations, only the LCAC is specifically tailored for the needs of direct amphibious assault.