Awwal 21, 1432 H/Feb 24, 2011, SPA -- Thailand's prime minister has a confession to make: He is also British. Prime Minister Abhisit Vejajjiva publicly acknowledged his dual nationality Thursday for the first time during a debate in Parliament, according to AP. Abhisit, 46, automatically holds British citizenship because he was born in Newcastle, to parents from a well-to-do Bangkok family. He would have to specifically renounce it to lose it. Abhisit's political foes have highlighted the matter. They claim that as a British citizen, he can be sued in international court over alleged abuses during his administration's crackdown on anti-government protests last year. Opponents like to tweak Abhisit for his upper-class Oxford University education, and typically refer to him in speeches by his English name, Mark.