Asada Jayanama, former permanent Thai representative to the United Nations, said Thaksin's two state visits to India during his first term were fuelled by his personal interests to strike a satellite deal for the family-owned Shin Corp.

"Because we have a weak foreign minister who responded to Thaksin as if he was his servant, we have been unable to solve any problems [related to foreign affairs]," Asada said.

Another diplomat and former Thai ambassador to South Africa, Surapong Jayanama, added that the conflict in Thailand's deep South had continued to expand until the problem had put strains on the country's relations with Malaysia, displaying Thaksin's failure to recognise cultural and religious diversities.

Kasit Piromya, former Thai ambassador to the US, said that under Thaksin, Thailand has taken on imperialist ideologies.