Book excerpt: "From 1964 to 1972, far beyond the battlefields of Vietnam and the glare of media distortions, American Green Berets and their indigenous troops fought a deadly secret war in Laos, Cambodia and North Vietnam under the aegis of the top secret Military Assistance Command Vietnam -- Studies and Observations Group, or simply SOG.... The centerpiece of SOG Chronicles Volume One is the 1970 story of Operation Tailwind, features a SOG element of 16 Green Berets and 120 indigenous soldiers that went deeper into Laos than any operation during the secret war"--Page 4 of cover.