Prayut Chan-O-Cha, who is leading Thailand’s junta, is on Monday set to receive King Bhumibol Adulyadej's endorsement as head of a ruling military council. File photo of Thailand's coup leader General Prayut Chan-O-Cha. (AFP PHOTO / PORNCHAI KITTIWONGSAKUL) Prayut will also give his first national address since seizing power in a coup. The ceremony is seen as a significant formality in Thailand, where the monarchy is the most important institution. It is set to take place on Monday morning. The military said Prayut will highlight his plans, including proclaiming an interim constitution and forming a legislative council. The Thai army seized power to quell months of political turmoil, drawing international criticism. It has detained scores of former leaders, including ousted premier Yingluck Shinawatra. Dozens of demonstrators have faced off with armed soldiers on the streets of Bangkok in protest against junta rule. The latest military intervention is the 19th actual or attempted coup in Thailand since 1932. - Agencies/xq