An official of Phalang Pracharat army party submits the registration document of Thai Prime Minister Prayut Chan-O-Cha bearing his photograph to election commission official in Bangkok as the party's candidate for premier on February 8, 2019. - A Thai princess will run for prime minister in March elections in an unprecedented entry by a royal into frontline politics, pitting her against the chief of the ruling junta, Prayut Chan-O-Cha and redrawing the nation's political landscape. (Photo by Krit Phromsakla Na SAKOLNAKORN / THAI NEWS PIX / AFP)