As it turns out, these guys were delaying departure while we were being delayed from arrival by higher HQ. They had mopped up some bad guys, had worked with us before, and wanted to say hello in the high desert. Higher was afraid that we'd be all messed up and start shooting each other while we both sported 4x6 US Flags. A lack of trust in the Troops to not shoot each other by the O's in the rear kept both elements outside the wire for a couple extra days. Then again, outside the wire, you can shoot your enemies and inside the wire, you salute them. So maybe it did work out for the best.