An AH-1 Cobra gunship escorts a formation of UH-1 Huey helicopters over the rugged highlands of Laos during Operation Tailwind, the September 1970 MACV-SOG raid along the Ho Chi Minh Trail. Aerial photographs like this one, taken by participants such as Barry Pencek, document the scale of the helicopter support required to insert, sustain, and extract SOG reconnaissance teams operating deep in enemy-controlled territory. Project: 219429