CUSHION CRAFT A Landing Craft Air Cushion assigned to Assault Craft Unit 4 disembarks the multi-purpose amphibious assault ship USS Iwo Jima, Atlantic Ocean, May 17, 2008. The USS Iwo Jima and ACU-4 are participating in the Iwo Jima Expeditionary Strike Group integration training. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 587528-V-ZAD26-264.jpg Photo Gallery