behind Thailand's fiery anti-government protest leader, Mr Suthep Thaugsuban, are two powerful retired generals with palace connections, a deep rivalry with the Shinawatra family and an ability to influence Thailand's coup-prone armed forces.The forces behind Mr Suthep are led by former defence minister General Prawit Wongsuwan and former army chief General Anupong Paochinda, towering figures in Thailand's military establishment, said two military sources with direct knowledge of the matter and a third with connections to Thai generals.