Members talk in the main hall of the Special Operations Association Reunion, Las Vegas, 2013. Flags of the United States, Canada, the U.S. Marine Corps and the former Republic of Vietnam hang from the coffered ceiling, and the association's shield - a skull in a green beret - appears on the wall banner. The association draws its membership largely from veterans of MACV-SOG, the classified Studies and Observations Group that ran cross-border reconnaissance into Laos and Cambodia. Project: 219854