Thai Prime Minister Prayut Chan-ocha urged Thai citizens during a televised speech Friday night to take the oath to emphasize their loyalty to the nation, its religion and the monarchy.

The event will take place across Thailand on Tuesday in all 76provinces at city halls and district offices.

Provincial governors and district chiefs will lead the oath-taking ceremonies in front of King Bhumibol Aduladej’s photo.

Thai citizens living abroad were also encouraged to take the oath at Thai embassies around the world on Sunday to “let the world know that Thais are eternally loyal to his majesty the king and the royal family.”

Thailand’s King Bhumibol Adulyadej, the world’s longest reigning monarch, died in October at the age of 88.

Bhumibol was a beloved and unifying figure in Thailand, whose70 years on the throne provided a consistent backdrop of stability to the frequent turbulence of Thai politics.