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.