I'd incline toward it being a pre-deployment training exercise before a particular battalion goes to the South. Might as well practice it right in a place where no one is heaving grenades, planting bombs or shooting at you..
The operation described sounds exactly the tactics a military unit would use down south.. And out in Nong Wua Sor, that's west of Udon and down the valley right?? Away from the big city and big towns.. A rural landscape probably again quite similar to what they'd encounter down south..





