U.S. Marines practice Special Purpose Insertion and Extraction rigging at Camp Lejeune. U.S. Marines dangle from a CH-46 Sea Knight helicopter as they practice Special Purpose Insertion and Extraction, or SPIE, rigging at Camp Lejeune, N.C., on Sept. 11, 1997. The Marines, from Battalion Landing Team 3/2, are honing their skills in preparation for their deployment with the 26th Marine Expeditionary Unit in February of 1998. SHARE: Download: Full Size (0.01 MB) Credit: VIRIN: 069347-S-ORG20-746.jpg Photo Gallery