In this picture taken on February 14, 2019 Thai Prime Minister Prayut Chan-O-Cha reviews a guard of honour as he arrives to witness a disaster management training exercise at a military base in Lopburi. - Junta chief Prayut Chan-O-Cha's grip on power was tossed into doubt by the political cameo of a princess. But a week later his ambitions to rebrand as a civilian leader again appear on track, a survivor - for now - of Thailand's treacherous, see-sawing politics. (Photo by Jewel SAMAD / AFP) / TO GO WITH Thailand-politics FOCUS by Sophie DEVILLER        (Photo credit should read JEWEL SAMAD/AFP/Getty Images)