This is an interesting article from Strategy Page. During the last coup in Thailand the old playbook of taking control of the traditional media did little to deter street level demonstrations or the opposition. Facebook appears to be to blame for this lack of proper control. So, logically, the generals decided to block access to Facebook. This caused an immediate uproar:
The generals were quickly informed that most of the troops and supporters of the military were heavy Facebook users and would not tolerate a shutdown. The military had this confirmed when they did block Facebook on May 28th and the adverse feedback was so immediate and personal (senior generals got complaints from family and friends) that Facebook was back on in Thailand less than an hour after the shutdown.
It also appears that the Thai military also has a Hunger Games problem. It appears that the generals have lost!