BANGKOK (AFP) - Yingluck Shinawatra was confirmed as Thailand's first female prime minister on Friday, faced with the daunting challenge of bringing stability to the kingdom after five years of political turmoil. Yingluck retained an air of calm confidence after she won a parliamentary vote to become premier with the support of 296 members of the lower house out of a potential 500. The country's 28th prime minister, who was catapulted from relative obscurity to election victory by her older brother's support, can expect royal endorsement within days to formalise her position.